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knockout | Knockout makes it easier to create rich, responsive UIs | Model View Controller library

by knockout JavaScript Version: v3.5.1 License: Non-SPDX

by knockout JavaScript Version: v3.5.1 License: Non-SPDX

Download this library from

kandi X-RAY | knockout Summary

knockout is a JavaScript library typically used in Architecture, Model View Controller, Vue, jQuery, Framework applications. knockout has no bugs, it has no vulnerabilities and it has medium support. However knockout has a Non-SPDX License. You can install using 'npm i knockout' or download it from GitHub, npm.

Knockout is a JavaScript MVVM (a modern variant of MVC) library that makes it easier to create rich, desktop-like user interfaces with JavaScript and HTML. It uses observers to make your UI automatically stay in sync with an underlying data model, along with a powerful and extensible set of declarative bindings to enable productive development.

Support

Support

Quality

Quality

Security

Security

License

License

Reuse

Reuse

kandi-support Support

knockout has a medium active ecosystem.
It has 9999 star(s) with 1566 fork(s). There are 551 watchers for this library.
It had no major release in the last 12 months.
There are 289 open issues and 1526 have been closed. On average issues are closed in 408 days. There are 73 open pull requests and 0 closed requests.
It has a neutral sentiment in the developer community.
The latest version of knockout is v3.5.1

knockout Support

Best in #Model View Controller

Average in #Model View Controller

knockout Support

Best in #Model View Controller

Average in #Model View Controller

quality kandi Quality

knockout has 0 bugs and 0 code smells.

knockout Quality

Best in #Model View Controller

Average in #Model View Controller

knockout Quality

Best in #Model View Controller

Average in #Model View Controller

security Security

knockout has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.
knockout code analysis shows 0 unresolved vulnerabilities.
There are 0 security hotspots that need review.

knockout Security

Best in #Model View Controller

Average in #Model View Controller

knockout Security

Best in #Model View Controller

Average in #Model View Controller

license License

knockout has a Non-SPDX License.
Non-SPDX licenses can be open source with a non SPDX compliant license, or non open source licenses, and you need to review them closely before use.

knockout License

Best in #Model View Controller

Average in #Model View Controller

knockout License

Best in #Model View Controller

Average in #Model View Controller

build Reuse

knockout releases are available to install and integrate.
Deployable package is available in npm.
Installation instructions, examples and code snippets are available.

knockout Reuse

Best in #Model View Controller

Average in #Model View Controller

knockout Reuse

Best in #Model View Controller

Average in #Model View Controller

Top functions reviewed by kandi - BETA

kandi has reviewed knockout and discovered the below as its top functions. This is intended to give you an instant insight into knockout implemented functionality, and help decide if they suit your requirements.

Apply bindings .
generate a replacement string
Creates a new binding handler for binding bindings .
Parses object literal .
Compare two big array
Activates a binding on the given DOM node .
Updates binding context .
Updates the model with the checkbox .
Extracts params parameters from a custom element .
Takes an array of loaders and returns a result of calling this one .

knockout Key Features

Knockout makes it easier to create rich, responsive UIs with JavaScript

knockout Examples and Code Snippets

See all related Code Snippets

Building Knockout from sources

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git clone https://github.com/knockout/knockout.git
cd knockout

Upload button unresponsive after first iteration JQUERY

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<input type="file" id="input-excel" value="Choose File" accept=".xlsx" />

<div id="wrapper">

</div>


    
   // read and display the records from excel file on the screen
   
    // passing in my button id here
    $('#input-excel').change(function (e) {
        $('#wrapper')[0].innerHTML ="";
        var reader = new FileReader();
        reader.readAsArrayBuffer(e.target.files[0]);
        reader.onload = function (e) {
            var excelData = new Uint8Array(reader.result);
            var wb = XLSX.read(excelData, { type: 'array' });
            console.log(wb);

            var htmlstr = XLSX.write(wb, {/* sheet: "Sheet1",*/ type: 'binary', bookType: 'html'});
            $('#wrapper')[0].innerHTML += htmlstr;
        };
    });

-----------------------

<input type="file" id="input-excel" value="Choose File" accept=".xlsx" />

<div id="wrapper">

</div>


    
   // read and display the records from excel file on the screen
   
    // passing in my button id here
    $('#input-excel').change(function (e) {
        $('#wrapper')[0].innerHTML ="";
        var reader = new FileReader();
        reader.readAsArrayBuffer(e.target.files[0]);
        reader.onload = function (e) {
            var excelData = new Uint8Array(reader.result);
            var wb = XLSX.read(excelData, { type: 'array' });
            console.log(wb);

            var htmlstr = XLSX.write(wb, {/* sheet: "Sheet1",*/ type: 'binary', bookType: 'html'});
            $('#wrapper')[0].innerHTML += htmlstr;
        };
    });

Is there a function in Knockout.js to build an object from a data-bind attribute string?

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ko.applyBindings({});

const myDiv = document.querySelector("div")
console.log(
  ko.bindingProvider.instance.getBindings(myDiv, ko.contextFor(myDiv))
)

<script src="https://cdnjs.cloudflare.com/ajax/libs/knockout/3.4.2/knockout-min.js"></script>
<div data-bind="text: 'Hello', attr: { title: 'World' }"></div>

-----------------------

ko.applyBindings({});

const myDiv = document.querySelector("div")
console.log(
  ko.bindingProvider.instance.getBindings(myDiv, ko.contextFor(myDiv))
)

<script src="https://cdnjs.cloudflare.com/ajax/libs/knockout/3.4.2/knockout-min.js"></script>
<div data-bind="text: 'Hello', attr: { title: 'World' }"></div>

Finding and replacing attribute in HTML File

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<script>
  const getElement1 = document.querySelector(".data1");
  const getElement2 = document.querySelector(".data2");

  getElement1.removeAttribute("data-bind");
  getElement1.setAttribute(":id", "[[componentid]]");

  getElement2.removeAttribute("data-bind");
  getElement2.setAttribute(":id", "[[pageid]]");
</script>

Why am I directed to the same page when using routes in react js

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const App = () => {
  return (
    <Router>
      <Routes>
        <Route exact path="/">
          <Home/>
        </Route>
        <Route exact path="/memory" >
          <Mem/>
        </Route>
      </Routes>
    </Router>
  );
};

function Home(){
      return (
      <>
      <Navbar />
      <AMBox></AMBox>
      <Experience></Experience>
      <Projects></Projects>
      <Education></Education>
      </>
   )
}

function Mem(){
      return (<Memory />)
}

-----------------------

const App = () => {
  return (
    <Router>
      <Navbar />
      <Routes>
        <Route path="/memory" element={<Memory />} />
        <Route
          path="/"
          element={(
            <>
              <AMBox />
              <Experience />
              <Projects />
              <Education />
            </>
          )}
        />
      </Routes>
    </Router>
  );
};

Type 'Observable<false>' is not assignable to type 'Observable<boolean>'

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function observable<T>(value: T extends infer U ? U: never): Observable<T>
{
  return undefined as any;  // the implementation is not important
}

const x: Observable<boolean> = observable(false); // no error

const bad = observable(false);
//     ^ unknown, which should be Observable<boolean>

declare function observable<T, U = any>(value?: T extends infer R ? R : U): 
    unknown extends T ? Observable<U> : Observable<T>

-----------------------

function observable<T>(value: T extends infer U ? U: never): Observable<T>
{
  return undefined as any;  // the implementation is not important
}

const x: Observable<boolean> = observable(false); // no error

const bad = observable(false);
//     ^ unknown, which should be Observable<boolean>

declare function observable<T, U = any>(value?: T extends infer R ? R : U): 
    unknown extends T ? Observable<U> : Observable<T>

-----------------------

function observable<T>(value: T extends infer U ? U: never): Observable<T>
{
  return undefined as any;  // the implementation is not important
}

const x: Observable<boolean> = observable(false); // no error

const bad = observable(false);
//     ^ unknown, which should be Observable<boolean>

declare function observable<T, U = any>(value?: T extends infer R ? R : U): 
    unknown extends T ? Observable<U> : Observable<T>

-----------------------

const x = observable<boolean>(false);

const x = observable<false | undefined>(false);
const y = observable(false);

-----------------------

const x = observable<boolean>(false);

const x = observable<false | undefined>(false);
const y = observable(false);

CSHTML button with javascript onlick function only works some times?

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$("input[class^='download'], input[class*=' download']").each(function () {
    $(this).click(function () {
    var id = $(this).attr('id');
    let passedValue = id.concat("-" + SDNo);
    attachVM.download(passedValue);
    });

$("input.download").on("click", function() {
    var id = $(this).attr('id');
    let passedValue = id.concat("-" + SDNo);
    attachVM.download(passedValue);
    });

-----------------------

$("input[class^='download'], input[class*=' download']").each(function () {
    $(this).click(function () {
    var id = $(this).attr('id');
    let passedValue = id.concat("-" + SDNo);
    attachVM.download(passedValue);
    });

$("input.download").on("click", function() {
    var id = $(this).attr('id');
    let passedValue = id.concat("-" + SDNo);
    attachVM.download(passedValue);
    });

How to iterate over a list of string using ko

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ko.applyBindings({ arrayOfStrings: [ "hello", "world" ] });

<script src="https://cdnjs.cloudflare.com/ajax/libs/knockout/3.4.2/knockout-min.js"></script>

<ul data-bind="foreach: arrayOfStrings">
  <li data-bind="text: $data"></li>
</ul>

ko.applyBindings({ warnings: [ "careful!", "watch out!" ] });

<script src="https://cdnjs.cloudflare.com/ajax/libs/knockout/3.4.2/knockout-min.js"></script>

<ul data-bind="foreach: { data: warnings, as: 'warning' }">
  <li data-bind="text: warning"></li>
</ul>

ko.applyBindings({ arrayOfStrings: [ "hello", "world" ] });

<script src="https://cdnjs.cloudflare.com/ajax/libs/knockout/3.4.2/knockout-min.js"></script>

<ul data-bind="foreach: arrayOfStrings">
  <li data-bind="text: $parent.arrayOfStrings[$index()]"></li>
</ul>

-----------------------

ko.applyBindings({ arrayOfStrings: [ "hello", "world" ] });

<script src="https://cdnjs.cloudflare.com/ajax/libs/knockout/3.4.2/knockout-min.js"></script>

<ul data-bind="foreach: arrayOfStrings">
  <li data-bind="text: $data"></li>
</ul>

ko.applyBindings({ warnings: [ "careful!", "watch out!" ] });

<script src="https://cdnjs.cloudflare.com/ajax/libs/knockout/3.4.2/knockout-min.js"></script>

<ul data-bind="foreach: { data: warnings, as: 'warning' }">
  <li data-bind="text: warning"></li>
</ul>

ko.applyBindings({ arrayOfStrings: [ "hello", "world" ] });

<script src="https://cdnjs.cloudflare.com/ajax/libs/knockout/3.4.2/knockout-min.js"></script>

<ul data-bind="foreach: arrayOfStrings">
  <li data-bind="text: $parent.arrayOfStrings[$index()]"></li>
</ul>

-----------------------

ko.applyBindings({ arrayOfStrings: [ "hello", "world" ] });

<script src="https://cdnjs.cloudflare.com/ajax/libs/knockout/3.4.2/knockout-min.js"></script>

<ul data-bind="foreach: arrayOfStrings">
  <li data-bind="text: $data"></li>
</ul>

ko.applyBindings({ warnings: [ "careful!", "watch out!" ] });

<script src="https://cdnjs.cloudflare.com/ajax/libs/knockout/3.4.2/knockout-min.js"></script>

<ul data-bind="foreach: { data: warnings, as: 'warning' }">
  <li data-bind="text: warning"></li>
</ul>

ko.applyBindings({ arrayOfStrings: [ "hello", "world" ] });

<script src="https://cdnjs.cloudflare.com/ajax/libs/knockout/3.4.2/knockout-min.js"></script>

<ul data-bind="foreach: arrayOfStrings">
  <li data-bind="text: $parent.arrayOfStrings[$index()]"></li>
</ul>

-----------------------

ko.applyBindings({ arrayOfStrings: [ "hello", "world" ] });

<script src="https://cdnjs.cloudflare.com/ajax/libs/knockout/3.4.2/knockout-min.js"></script>

<ul data-bind="foreach: arrayOfStrings">
  <li data-bind="text: $data"></li>
</ul>

ko.applyBindings({ warnings: [ "careful!", "watch out!" ] });

<script src="https://cdnjs.cloudflare.com/ajax/libs/knockout/3.4.2/knockout-min.js"></script>

<ul data-bind="foreach: { data: warnings, as: 'warning' }">
  <li data-bind="text: warning"></li>
</ul>

ko.applyBindings({ arrayOfStrings: [ "hello", "world" ] });

<script src="https://cdnjs.cloudflare.com/ajax/libs/knockout/3.4.2/knockout-min.js"></script>

<ul data-bind="foreach: arrayOfStrings">
  <li data-bind="text: $parent.arrayOfStrings[$index()]"></li>
</ul>

-----------------------

ko.applyBindings({ arrayOfStrings: [ "hello", "world" ] });

<script src="https://cdnjs.cloudflare.com/ajax/libs/knockout/3.4.2/knockout-min.js"></script>

<ul data-bind="foreach: arrayOfStrings">
  <li data-bind="text: $data"></li>
</ul>

ko.applyBindings({ warnings: [ "careful!", "watch out!" ] });

<script src="https://cdnjs.cloudflare.com/ajax/libs/knockout/3.4.2/knockout-min.js"></script>

<ul data-bind="foreach: { data: warnings, as: 'warning' }">
  <li data-bind="text: warning"></li>
</ul>

ko.applyBindings({ arrayOfStrings: [ "hello", "world" ] });

<script src="https://cdnjs.cloudflare.com/ajax/libs/knockout/3.4.2/knockout-min.js"></script>

<ul data-bind="foreach: arrayOfStrings">
  <li data-bind="text: $parent.arrayOfStrings[$index()]"></li>
</ul>

-----------------------

ko.applyBindings({ arrayOfStrings: [ "hello", "world" ] });

<script src="https://cdnjs.cloudflare.com/ajax/libs/knockout/3.4.2/knockout-min.js"></script>

<ul data-bind="foreach: arrayOfStrings">
  <li data-bind="text: $data"></li>
</ul>

ko.applyBindings({ warnings: [ "careful!", "watch out!" ] });

<script src="https://cdnjs.cloudflare.com/ajax/libs/knockout/3.4.2/knockout-min.js"></script>

<ul data-bind="foreach: { data: warnings, as: 'warning' }">
  <li data-bind="text: warning"></li>
</ul>

ko.applyBindings({ arrayOfStrings: [ "hello", "world" ] });

<script src="https://cdnjs.cloudflare.com/ajax/libs/knockout/3.4.2/knockout-min.js"></script>

<ul data-bind="foreach: arrayOfStrings">
  <li data-bind="text: $parent.arrayOfStrings[$index()]"></li>
</ul>

KnockoutJS: select option with a background image

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<select data-bind="
    options: fonts, 
    optionsText: 'name' ,
    value: activeModel().operations()[0].fonts_id,
    optionsAfterRender: backgroundImage"></select>

// In your question, this array is longer.
let fontsOrigArray =[{"name":"1 BigCheese DNA","alias":"1 BigCheese DNA","id":94},{"name":"A Charming Font Expanded","alias":"A Charming Font","id":1},{"name":"a Papa","alias":"a Papa","id":2},{"name":"Aardvark Cafe","alias":"Aardvark Cafe","id":3},{"name":"Accidental Presidency","alias":"Accidental Presidency","id":95},{"name":"Action Is, Shaded JL","alias":"Action Is","id":4},{"name":"Action Jackson","alias":"Action Jackson","id":98},{"name":"Action Man","alias":"Action Man","id":97},{"name":"ActionIs","alias":"ActionIs","id":155},{"name":"Adventure","alias":"Adventure","id":154},{"name":"Advert","alias":"Advert","id":255},{"name":"African","alias":"African","id":8},{"name":"Airstream","alias":"Airstream","id":96},{"name":"akaHoggle","alias":"akaHoggle","id":189},{"name":"Aklatanic TSO","alias":"Aklatanic TSO","id":236}];

function ViewModel(fontsOrig) {
  this.valueSelected = ko.observable(''); // It must be activeModel().operations()[0].fonts_id

  this.fonts = fontsOrig;
  this.backgroundImage = function(option, item) {
    ko.applyBindingsToNode(
      option, {
        style: {
          'background-image': 'url(\'' + '/images/fontthumbs/' + item.id + '.png' + '\')'
        }
      },
      item);
  }

}

ko.applyBindings(new ViewModel(fontsOrigArray));

<script src="https://cdnjs.cloudflare.com/ajax/libs/knockout/3.4.2/knockout-min.js"></script>


<select data-bind="options: fonts, 
optionsText: 'name' , 
optionsValue: 'id',
value: valueSelected,
optionsAfterRender: backgroundImage"></select>

-----------------------

<select data-bind="
    options: fonts, 
    optionsText: 'name' ,
    value: activeModel().operations()[0].fonts_id,
    optionsAfterRender: backgroundImage"></select>

// In your question, this array is longer.
let fontsOrigArray =[{"name":"1 BigCheese DNA","alias":"1 BigCheese DNA","id":94},{"name":"A Charming Font Expanded","alias":"A Charming Font","id":1},{"name":"a Papa","alias":"a Papa","id":2},{"name":"Aardvark Cafe","alias":"Aardvark Cafe","id":3},{"name":"Accidental Presidency","alias":"Accidental Presidency","id":95},{"name":"Action Is, Shaded JL","alias":"Action Is","id":4},{"name":"Action Jackson","alias":"Action Jackson","id":98},{"name":"Action Man","alias":"Action Man","id":97},{"name":"ActionIs","alias":"ActionIs","id":155},{"name":"Adventure","alias":"Adventure","id":154},{"name":"Advert","alias":"Advert","id":255},{"name":"African","alias":"African","id":8},{"name":"Airstream","alias":"Airstream","id":96},{"name":"akaHoggle","alias":"akaHoggle","id":189},{"name":"Aklatanic TSO","alias":"Aklatanic TSO","id":236}];

function ViewModel(fontsOrig) {
  this.valueSelected = ko.observable(''); // It must be activeModel().operations()[0].fonts_id

  this.fonts = fontsOrig;
  this.backgroundImage = function(option, item) {
    ko.applyBindingsToNode(
      option, {
        style: {
          'background-image': 'url(\'' + '/images/fontthumbs/' + item.id + '.png' + '\')'
        }
      },
      item);
  }

}

ko.applyBindings(new ViewModel(fontsOrigArray));

<script src="https://cdnjs.cloudflare.com/ajax/libs/knockout/3.4.2/knockout-min.js"></script>


<select data-bind="options: fonts, 
optionsText: 'name' , 
optionsValue: 'id',
value: valueSelected,
optionsAfterRender: backgroundImage"></select>

-----------------------

<select data-bind="
    options: fonts, 
    optionsText: 'name' ,
    value: activeModel().operations()[0].fonts_id,
    optionsAfterRender: backgroundImage"></select>

// In your question, this array is longer.
let fontsOrigArray =[{"name":"1 BigCheese DNA","alias":"1 BigCheese DNA","id":94},{"name":"A Charming Font Expanded","alias":"A Charming Font","id":1},{"name":"a Papa","alias":"a Papa","id":2},{"name":"Aardvark Cafe","alias":"Aardvark Cafe","id":3},{"name":"Accidental Presidency","alias":"Accidental Presidency","id":95},{"name":"Action Is, Shaded JL","alias":"Action Is","id":4},{"name":"Action Jackson","alias":"Action Jackson","id":98},{"name":"Action Man","alias":"Action Man","id":97},{"name":"ActionIs","alias":"ActionIs","id":155},{"name":"Adventure","alias":"Adventure","id":154},{"name":"Advert","alias":"Advert","id":255},{"name":"African","alias":"African","id":8},{"name":"Airstream","alias":"Airstream","id":96},{"name":"akaHoggle","alias":"akaHoggle","id":189},{"name":"Aklatanic TSO","alias":"Aklatanic TSO","id":236}];

function ViewModel(fontsOrig) {
  this.valueSelected = ko.observable(''); // It must be activeModel().operations()[0].fonts_id

  this.fonts = fontsOrig;
  this.backgroundImage = function(option, item) {
    ko.applyBindingsToNode(
      option, {
        style: {
          'background-image': 'url(\'' + '/images/fontthumbs/' + item.id + '.png' + '\')'
        }
      },
      item);
  }

}

ko.applyBindings(new ViewModel(fontsOrigArray));

<script src="https://cdnjs.cloudflare.com/ajax/libs/knockout/3.4.2/knockout-min.js"></script>


<select data-bind="options: fonts, 
optionsText: 'name' , 
optionsValue: 'id',
value: valueSelected,
optionsAfterRender: backgroundImage"></select>

KnockoutJS foreach binding add outline around selected items

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[
    {text: 'Mon', active: true},
    {text: 'Tue', active: true},
    {text: 'Wed', active: true},
    {text: 'Tue', active: false},
    {text: 'Fri', active: false},
    {text: 'Sat', active: true},
    {text: 'Sun', active: true}
]

[
  [
    {text: 'Mon', active: true},
    {text: 'Tue', active: true},
    {text: 'Wed', active: true}
  ],
  [
    {text: 'Tue', active: false},
    {text: 'Fri', active: false},
  ],
  [
    {text: 'Sat', active: true},
    {text: 'Sun', active: true}
  ]
]

function Button(params) {
  this.text = params.text;
  this.active = ko.observable(params.active);
  this.toggle = () => this.active(!this.active());
}

function ButtonList(params) {
  this.buttons = ko.observableArray(params.buttons.map(b => new Button(b)));
  this.buttonGroups = ko.pureComputed(() => {
    const groups = [];
    let prev = null, group = null;
    this.buttons().forEach(b => {
      if (b.active() !== prev) {
        group = [];
        groups.push(group);
        prev = b.active();
      }
      group.push(b);
    });
    return groups;
  });
}

const vm = new ButtonList({
  buttons: [
    {text: 'Mon', active: true},
    {text: 'Tue', active: true},
    {text: 'Wed', active: true},
    {text: 'Tue', active: false},
    {text: 'Fri', active: false},
    {text: 'Sat', active: true},
    {text: 'Sun', active: true}
  ]
});
ko.applyBindings(vm);

.btns {
  display: flex;
}
.btn-group {
  display: flex;
  outline-offset: 2px;
}
.btn-group.active {
  outline: 2px solid black;
}
.btn-group > * {
  width: 50px;
  padding: 5px;
  margin: 0;
  text-align: center;
}
.btn-group > .active {
  background-color: black;
  color: white;
}

<script src="https://cdnjs.cloudflare.com/ajax/libs/knockout/3.4.2/knockout-min.js"></script>

<div class="btns" data-bind="foreach: buttonGroups">
  <div class="btn-group" data-bind="foreach: $data, css: {active: $data[0].active}">
    <div data-bind="click: toggle, text: text, css: {active: active}"></div>
  </div>
</div>

-----------------------

[
    {text: 'Mon', active: true},
    {text: 'Tue', active: true},
    {text: 'Wed', active: true},
    {text: 'Tue', active: false},
    {text: 'Fri', active: false},
    {text: 'Sat', active: true},
    {text: 'Sun', active: true}
]

[
  [
    {text: 'Mon', active: true},
    {text: 'Tue', active: true},
    {text: 'Wed', active: true}
  ],
  [
    {text: 'Tue', active: false},
    {text: 'Fri', active: false},
  ],
  [
    {text: 'Sat', active: true},
    {text: 'Sun', active: true}
  ]
]

function Button(params) {
  this.text = params.text;
  this.active = ko.observable(params.active);
  this.toggle = () => this.active(!this.active());
}

function ButtonList(params) {
  this.buttons = ko.observableArray(params.buttons.map(b => new Button(b)));
  this.buttonGroups = ko.pureComputed(() => {
    const groups = [];
    let prev = null, group = null;
    this.buttons().forEach(b => {
      if (b.active() !== prev) {
        group = [];
        groups.push(group);
        prev = b.active();
      }
      group.push(b);
    });
    return groups;
  });
}

const vm = new ButtonList({
  buttons: [
    {text: 'Mon', active: true},
    {text: 'Tue', active: true},
    {text: 'Wed', active: true},
    {text: 'Tue', active: false},
    {text: 'Fri', active: false},
    {text: 'Sat', active: true},
    {text: 'Sun', active: true}
  ]
});
ko.applyBindings(vm);

.btns {
  display: flex;
}
.btn-group {
  display: flex;
  outline-offset: 2px;
}
.btn-group.active {
  outline: 2px solid black;
}
.btn-group > * {
  width: 50px;
  padding: 5px;
  margin: 0;
  text-align: center;
}
.btn-group > .active {
  background-color: black;
  color: white;
}

<script src="https://cdnjs.cloudflare.com/ajax/libs/knockout/3.4.2/knockout-min.js"></script>

<div class="btns" data-bind="foreach: buttonGroups">
  <div class="btn-group" data-bind="foreach: $data, css: {active: $data[0].active}">
    <div data-bind="click: toggle, text: text, css: {active: active}"></div>
  </div>
</div>

-----------------------

[
    {text: 'Mon', active: true},
    {text: 'Tue', active: true},
    {text: 'Wed', active: true},
    {text: 'Tue', active: false},
    {text: 'Fri', active: false},
    {text: 'Sat', active: true},
    {text: 'Sun', active: true}
]

[
  [
    {text: 'Mon', active: true},
    {text: 'Tue', active: true},
    {text: 'Wed', active: true}
  ],
  [
    {text: 'Tue', active: false},
    {text: 'Fri', active: false},
  ],
  [
    {text: 'Sat', active: true},
    {text: 'Sun', active: true}
  ]
]

function Button(params) {
  this.text = params.text;
  this.active = ko.observable(params.active);
  this.toggle = () => this.active(!this.active());
}

function ButtonList(params) {
  this.buttons = ko.observableArray(params.buttons.map(b => new Button(b)));
  this.buttonGroups = ko.pureComputed(() => {
    const groups = [];
    let prev = null, group = null;
    this.buttons().forEach(b => {
      if (b.active() !== prev) {
        group = [];
        groups.push(group);
        prev = b.active();
      }
      group.push(b);
    });
    return groups;
  });
}

const vm = new ButtonList({
  buttons: [
    {text: 'Mon', active: true},
    {text: 'Tue', active: true},
    {text: 'Wed', active: true},
    {text: 'Tue', active: false},
    {text: 'Fri', active: false},
    {text: 'Sat', active: true},
    {text: 'Sun', active: true}
  ]
});
ko.applyBindings(vm);

.btns {
  display: flex;
}
.btn-group {
  display: flex;
  outline-offset: 2px;
}
.btn-group.active {
  outline: 2px solid black;
}
.btn-group > * {
  width: 50px;
  padding: 5px;
  margin: 0;
  text-align: center;
}
.btn-group > .active {
  background-color: black;
  color: white;
}

<script src="https://cdnjs.cloudflare.com/ajax/libs/knockout/3.4.2/knockout-min.js"></script>

<div class="btns" data-bind="foreach: buttonGroups">
  <div class="btn-group" data-bind="foreach: $data, css: {active: $data[0].active}">
    <div data-bind="click: toggle, text: text, css: {active: active}"></div>
  </div>
</div>

-----------------------

[
    {text: 'Mon', active: true},
    {text: 'Tue', active: true},
    {text: 'Wed', active: true},
    {text: 'Tue', active: false},
    {text: 'Fri', active: false},
    {text: 'Sat', active: true},
    {text: 'Sun', active: true}
]

[
  [
    {text: 'Mon', active: true},
    {text: 'Tue', active: true},
    {text: 'Wed', active: true}
  ],
  [
    {text: 'Tue', active: false},
    {text: 'Fri', active: false},
  ],
  [
    {text: 'Sat', active: true},
    {text: 'Sun', active: true}
  ]
]

function Button(params) {
  this.text = params.text;
  this.active = ko.observable(params.active);
  this.toggle = () => this.active(!this.active());
}

function ButtonList(params) {
  this.buttons = ko.observableArray(params.buttons.map(b => new Button(b)));
  this.buttonGroups = ko.pureComputed(() => {
    const groups = [];
    let prev = null, group = null;
    this.buttons().forEach(b => {
      if (b.active() !== prev) {
        group = [];
        groups.push(group);
        prev = b.active();
      }
      group.push(b);
    });
    return groups;
  });
}

const vm = new ButtonList({
  buttons: [
    {text: 'Mon', active: true},
    {text: 'Tue', active: true},
    {text: 'Wed', active: true},
    {text: 'Tue', active: false},
    {text: 'Fri', active: false},
    {text: 'Sat', active: true},
    {text: 'Sun', active: true}
  ]
});
ko.applyBindings(vm);

.btns {
  display: flex;
}
.btn-group {
  display: flex;
  outline-offset: 2px;
}
.btn-group.active {
  outline: 2px solid black;
}
.btn-group > * {
  width: 50px;
  padding: 5px;
  margin: 0;
  text-align: center;
}
.btn-group > .active {
  background-color: black;
  color: white;
}

<script src="https://cdnjs.cloudflare.com/ajax/libs/knockout/3.4.2/knockout-min.js"></script>

<div class="btns" data-bind="foreach: buttonGroups">
  <div class="btn-group" data-bind="foreach: $data, css: {active: $data[0].active}">
    <div data-bind="click: toggle, text: text, css: {active: active}"></div>
  </div>
</div>

-----------------------

[
    {text: 'Mon', active: true},
    {text: 'Tue', active: true},
    {text: 'Wed', active: true},
    {text: 'Tue', active: false},
    {text: 'Fri', active: false},
    {text: 'Sat', active: true},
    {text: 'Sun', active: true}
]

[
  [
    {text: 'Mon', active: true},
    {text: 'Tue', active: true},
    {text: 'Wed', active: true}
  ],
  [
    {text: 'Tue', active: false},
    {text: 'Fri', active: false},
  ],
  [
    {text: 'Sat', active: true},
    {text: 'Sun', active: true}
  ]
]

function Button(params) {
  this.text = params.text;
  this.active = ko.observable(params.active);
  this.toggle = () => this.active(!this.active());
}

function ButtonList(params) {
  this.buttons = ko.observableArray(params.buttons.map(b => new Button(b)));
  this.buttonGroups = ko.pureComputed(() => {
    const groups = [];
    let prev = null, group = null;
    this.buttons().forEach(b => {
      if (b.active() !== prev) {
        group = [];
        groups.push(group);
        prev = b.active();
      }
      group.push(b);
    });
    return groups;
  });
}

const vm = new ButtonList({
  buttons: [
    {text: 'Mon', active: true},
    {text: 'Tue', active: true},
    {text: 'Wed', active: true},
    {text: 'Tue', active: false},
    {text: 'Fri', active: false},
    {text: 'Sat', active: true},
    {text: 'Sun', active: true}
  ]
});
ko.applyBindings(vm);

.btns {
  display: flex;
}
.btn-group {
  display: flex;
  outline-offset: 2px;
}
.btn-group.active {
  outline: 2px solid black;
}
.btn-group > * {
  width: 50px;
  padding: 5px;
  margin: 0;
  text-align: center;
}
.btn-group > .active {
  background-color: black;
  color: white;
}

<script src="https://cdnjs.cloudflare.com/ajax/libs/knockout/3.4.2/knockout-min.js"></script>

<div class="btns" data-bind="foreach: buttonGroups">
  <div class="btn-group" data-bind="foreach: $data, css: {active: $data[0].active}">
    <div data-bind="click: toggle, text: text, css: {active: active}"></div>
  </div>
</div>

The 'image' attribute has no file associated with it in django

Copy

Download

{% if products.image %}
    Image :- <img src="{{products.image.url}}" alt="image"><br><br>
{% endif %}

-----------------------

<form method="post" enctype="multipart/form-data" action ="">
      {% csrf_token %}
       
        <table border="1">
    <tr>
        <td>Title:
        <input type="text" name="title" id="title" data-bind="value: title"></td>
        <br>
    </tr>
    <tr>
        <td>Description:
        <textarea name="description" id="description">Description</textarea></td>
        <br>
    </tr>
    <tr>
        <td>Image:
        <input type="file" name="image" id="image"></td>
        <br>
    </tr>
    
    <tr>
        <td><button type="submit" id="submit" data-bind="submit: mySubmit">Submit</button></td>
    </tr>

</table>
</form>

See all related Code Snippets

Community Discussions

Trending Discussions on knockout

Upload button unresponsive after first iteration JQUERY
Is there a function in Knockout.js to build an object from a data-bind attribute string?
Finding and replacing attribute in HTML File
Why am I directed to the same page when using routes in react js
Type 'Observable<false>' is not assignable to type 'Observable<boolean>'
CSHTML button with javascript onlick function only works some times?
How to iterate over a list of string using ko
Unable to convert jquery ajax response to array javascript
Why doesnt the page scroll down?
KnockoutJS: select option with a background image

Trending Discussions on knockout

QUESTION

Upload button unresponsive after first iteration JQUERY

Asked 2022-Apr-01 at 01:14

I have a button that uploads the excel file.

<input type="file" id="input-excel" value="Choose File" accept=".xlsx" />

Below is an embedded script in the HTML to read the excel file and display it in the UI.

<script type="text/javascript">
    
   // read and display the records from excel file on the screen
   
    // passing in my button id here
    $('#input-excel').change(function (e) {
        var reader = new FileReader();
        reader.readAsArrayBuffer(e.target.files[0]);

        reader.onload = function (e) {
            var excelData = new Uint8Array(reader.result);
            var wb = XLSX.read(excelData, { type: 'array' });
            console.log(wb);

            var htmlstr = XLSX.write(wb, {/* sheet: "Sheet1",*/ type: 'binary', bookType: 'html'});
            $('#wrapper')[0].innerHTML += htmlstr;
        };
    });
</script>

@section scripts{

    <script src="~/Scripts/ViewModels/RmaCreation/rmacreation.js"></script>
    <script src="~/Scripts/knockout-3.2.0.js"></script>
    <script language="javascript" src="~/Scripts/xlsx.full.min.js"></script>

}

I am able to upload excel file in the first iteration. I can see the records from the excel file in the UI.

However, the button becomes unresponsive in the second iteration. How do I make this button responsive after every iteration?

ANSWER

Answered 2022-Apr-01 at 01:14

https://jsfiddle.net/03ut9zjs/2/

<input type="file" id="input-excel" value="Choose File" accept=".xlsx" />

<div id="wrapper">

</div>


    
   // read and display the records from excel file on the screen
   
    // passing in my button id here
    $('#input-excel').change(function (e) {
        $('#wrapper')[0].innerHTML ="";
        var reader = new FileReader();
        reader.readAsArrayBuffer(e.target.files[0]);
        reader.onload = function (e) {
            var excelData = new Uint8Array(reader.result);
            var wb = XLSX.read(excelData, { type: 'array' });
            console.log(wb);

            var htmlstr = XLSX.write(wb, {/* sheet: "Sheet1",*/ type: 'binary', bookType: 'html'});
            $('#wrapper')[0].innerHTML += htmlstr;
        };
    });

You haven't included wrapper div in your code so i am not sure where/how you've placed it.

It seems to work fine in this fiddle. Are you able to recreate the issue here?

Source https://stackoverflow.com/questions/71697563

QUESTION

Why am I directed to the same page when using routes in react js

Asked 2022-Mar-08 at 20:31

So in my app.js i created Router-Routes-Route tags to direct me to a blank page after clicking on a button that would take me to the link. but it doesn't seem like its working and instead its taking me to the same exact page with a new link that am directed to. also when I write any text it is written on the top of the page after clicking on the button.

Here is my code

App.js Class:-

import "./App.css";
import React from "react";
import Navbar from "./Component/Navbar";
import Sidebar from "./Component/Navbar";
import HeaderBox from "./Component/HeaderBox";
import AMBox from "./Component/AMBox";
import "bootstrap/dist/css/bootstrap.min.css";
import Experience from "./Component/Experience";
import Education from "./Component/Education";
import Projects from "./Component/Projects";
import { BrowserRouter as Router, Routes, Route } from "react-router-dom";
import Memory from "./Component/Memory/Memory";
import About from "./About";
// import { Card } from "react-bootstrap";

const App = () => {
  return (
    <Router>
      <Routes>
        <Route path="/Memory" element={<Memory />}></Route>
      </Routes>
      <Navbar />
      <AMBox></AMBox>
      <Experience></Experience>
      <Projects></Projects>
      <Education></Education>
    </Router>
  );
};
 




export default App;```

This is the way I linked  the memory to get me the link
 
 <NavLinks to="Memory">
            <svg
              class="myClass1"
              viewBox="45 60 400 320"
              xmlns="http://www.w3.org/2000/svg"
            >
         
              <mask id="knockout-text">
                <rect width="100%" height="100%" fill="#fff" x="0" y="0" />
                <text x="147" y="227" fill="#000">
                  Memory
                </text>
              </mask>
            </svg>
          </NavLinks>

export const NavItem = styled.li`
  height: 80px;
`;

export const NavLinks = styled(LinkS)`
  color: #fff;
  display: flex;
  align-items: center;
  text-decoration: none;
  list-style-type: none;
  padding: 0 1rem;
  margin-right: 20px;
  height: 100%;
  cursor: Pointer;

  &.active {
    border-bottom: 3px solid #01bf71;
  }
  @media screen and (max-width: 960px) {
    margin-right: 4px;
  }
`;

The Memory class

import React from "react";

const Memory = () => {
  return <div>Memory Page</div>;
};

export default Memory;

Before and after clicking on the memory button

I tried doing this but i got an error saying ''Error: useHref() may be used only in the context of a component.''

    <>
    <Router>
      <Routes>
        <Route path="/Memory" element={<Memory />}></Route>
      </Routes>
      </Router>
      <Navbar />
      <AMBox></AMBox>
      <Experience></Experience>
      <Projects></Projects>
      <Education></Education>
      </>

Thank you

ANSWER

Answered 2022-Mar-08 at 20:31

const App = () => {
  return (
    <Router>
      <Routes>
        <Route exact path="/">
          <Home/>
        </Route>
        <Route exact path="/memory" >
          <Mem/>
        </Route>
      </Routes>
    </Router>
  );
};

function Home(){
      return (
      <>
      <Navbar />
      <AMBox></AMBox>
      <Experience></Experience>
      <Projects></Projects>
      <Education></Education>
      </>
   )
}

function Mem(){
      return (<Memory />)
}

Do make modifications to fit your case

Source https://stackoverflow.com/questions/71385430

QUESTION

Type 'Observable<false>' is not assignable to type 'Observable<boolean>'

Asked 2022-Mar-08 at 13:13

We are using Knockout.js (v3.5.0) and its TypeScript definitions. They worked OK until TypeScript 4.6.2. However the problem seems to be "deeper" than in the definitions file. It seems that there was some change in TypeScript in handling a boolean type. So rather than tagging this question as Knockout.js problem, I created small example of code inspired by the Knockout d.ts that illustrates the problem:

interface Observable<T>
{
  (): T;
  (value: T): any;
}

function observable<T>(value: T): Observable<T>
{
  return undefined as any;  // the implementation is not important
}

const x: Observable<boolean> = observable(false);

This code has one compilation problem:

Type 'Observable<false>' is not assignable to type 'Observable<boolean>'.
  Types of parameters 'value' and 'value' are incompatible.
    Type 'boolean' is not assignable to type 'false'.

Of course casting the false as boolean works, but I do consider this as hack, not a solution (obviously we need cast on every occurrence of true/false). Any way to actually solve this?

Edit: based on comment it is obvious that some type checking was changed. More examples can be seen here. Playground Link.

Is there any info (with explanation) for this change?

Edit2: as suggested in comments, I filed a bug report at https://github.com/microsoft/TypeScript/issues/48150

ANSWER

Answered 2022-Mar-08 at 13:13

According to the user who has responded to the Github issue (https://github.com/microsoft/TypeScript/issues/48150) the Typescript 4.6 compilation error is expected:

I believe this is a correct error which was not handled properly in old versions. The generic parameter T is invariant as it is used in both a covariant position () => T and a contravariant position (value: T) => any.

which is indeed true. Since user helped solve the problem, for sake of completeness I will try to rephrase and summarize his comments here.

The first proposed solution solves the problem only partially:

function observable<T>(value: T extends infer U ? U: never): Observable<T>
{
  return undefined as any;  // the implementation is not important
}

const x: Observable<boolean> = observable(false); // no error

however that will produce unknown type without a type annotation.

const bad = observable(false);
//     ^ unknown, which should be Observable<boolean>

The correct solution seems to introduce another type parameter

declare function observable<T, U = any>(value?: T extends infer R ? R : U): 
    unknown extends T ? Observable<U> : Observable<T>

Playground Link

As the main issue was with the Knockout.js library, I filed the issue there (https://github.com/knockout/knockout/issues/2589), hopefully someone with enough Typescript knowledge will correct the problem.

Source https://stackoverflow.com/questions/71319489

QUESTION

CSHTML button with javascript onlick function only works some times?

Asked 2022-Feb-16 at 19:44

I have a download button set up on a web page that is iteratively assigned an ID based on the how many questions are posted.

Here is the button:

<input data-bind="attr: { id: $index() }" type="button" value="Download" class="download" />

Here is the the JS function that finds the number assigned and does the onclick:

@Scripts.Render("~/bundles/knockout")

<script type="text/javascript">
var SDNo = 0;
    $(document).ready(function () {
            SystemJS.import('sd/questions').then(function (modules) {
                  //Code here for another section that fills out the questions not relevant apart from assigning SDNo

            });
    
            SystemJS.import('sd/download').then(function (modules2) {
                var attachVM = new modules2.Attachment();
                //$("#download").click(function () {
                $("input[class^='download'], input[class*=' download']").each(function () {
                    $(this).click(function () {
                        var id = $(this).attr('id');
                        let passedValue = id.concat("-" + SDNo);
                        attachVM.download(passedValue);
                    });
                });
            
    
            });

The above function allows me to go off to a typescript file and handle the required API call to GET a file

that code is here:

typescript

export class Attachment {

    async download(ID: Number) {
        window.open(await WebApi.getJSON('SD', 'Download', Number));

    }
}

So yeah it'll work then it'll randomly stop working for no reason that I can find and obviously no errors thrown, via debugging it doesn't even get into the typescript file at all nothing happens. But then sometimes it goes all the way through into the controller doing what it needs to do.

ANSWER

Answered 2022-Feb-16 at 19:44

As per @LouysPatriceBessette

$("input[class^='download'], input[class*=' download']").each(function () {
    $(this).click(function () {
    var id = $(this).attr('id');
    let passedValue = id.concat("-" + SDNo);
    attachVM.download(passedValue);
    });

to

$("input.download").on("click", function() {
    var id = $(this).attr('id');
    let passedValue = id.concat("-" + SDNo);
    attachVM.download(passedValue);
    });

And it works consistently now thank you again.

Source https://stackoverflow.com/questions/71147119

QUESTION

How to iterate over a list of string using ko

Asked 2022-Feb-15 at 15:37

So I have the following code to show the warning message forwarded from the backend, which unfortunately isn't working as expected.

<div data-bind="with: report">
     <!-- ko foreach: warnings -->
     <div data-bind="text: warnings[index()]"></div>
     <!-- /ko -->
     ...
</div>

report is a ko.observable and is filled by a call to the backend that currently returns a warning to notify that something went wrong and prevent a backend crash.

report(ko.toJS(data));

warnings on the backend is a List in this report class that contains several Lists with objects. Since I don't see any other lists further defined in the js file I would expect the warnigns list to be in report as well, but somehow the messages don't show. Anyone can point me in the right direction to what I'm missing?

Seeing the knockout page with the foreach they only example with objects... So is it possible to even have a simple string array?

ANSWER

Answered 2022-Feb-15 at 15:37

You can use $data to refer to the current element of the iteration:

ko.applyBindings({ arrayOfStrings: [ "hello", "world" ] });

<script src="https://cdnjs.cloudflare.com/ajax/libs/knockout/3.4.2/knockout-min.js"></script>

<ul data-bind="foreach: arrayOfStrings">
  <li data-bind="text: $data"></li>
</ul>

Using $data requires a bit of knockout specific knowledge. If you want to circumvent this, I would suggest using the expanded foreach binding: foreach: { data: warnings, as: 'warning' }:

ko.applyBindings({ warnings: [ "careful!", "watch out!" ] });

<script src="https://cdnjs.cloudflare.com/ajax/libs/knockout/3.4.2/knockout-min.js"></script>

<ul data-bind="foreach: { data: warnings, as: 'warning' }">
  <li data-bind="text: warning"></li>
</ul>

The reason your current attempt does not work: foreach creates a new binding context. warnings will no longer be directly accessible, unless it's a property of the subject element of the current iteration. To make it work, you would have to write $parent.warnings[$index()]:

ko.applyBindings({ arrayOfStrings: [ "hello", "world" ] });

<script src="https://cdnjs.cloudflare.com/ajax/libs/knockout/3.4.2/knockout-min.js"></script>

<ul data-bind="foreach: arrayOfStrings">
  <li data-bind="text: $parent.arrayOfStrings[$index()]"></li>
</ul>

Source https://stackoverflow.com/questions/71127766

QUESTION

Why doesnt the page scroll down?

Asked 2022-Jan-27 at 00:46

So, this is a simples question. Why, even thougth i have a div that overtakes the length of window, i cant scroll down the page to see the rest of what that div contains? Never happened to me, tried to search some things but i cant find. I put all code because i dont know if its something of <meta name ....

<!doctype html>
<html lang="en">
<head>
    <!-- Required meta tags -->
    <meta charset="utf-8">

<title>ITW 2021/22 - Driver Details</title>
<link href="Content/bootstrap.min.css" rel="stylesheet" />
<link href="Content/font-awesome.min.css" rel="stylesheet" />
<link rel="stylesheet" href="//code.jquery.com/ui/1.11.4/themes/ui-darkness/jquery-ui.css">
<link href ="../Content/bootstrap-reboot.min.css" rel="stylesheet" />
<link rel="shortcut icon" href="#">
<style>
    .styles {
        height: 400px;
        width: 500px;
        background-repeat: no-repeat;
        background-size: cover;
    }

    #index {
        background-size: cover;
        background-image: url("https://images5.alphacoders.com/317/thumb-1920-317664.jpg");
        background-position: top;
        position: fixed;
        height: 100%;
        width: 100%;
        z-index: -1;
    }
</style>
</head>
    <body id="index">
    <nav class="navbar navbar-expand-lg navbar-light bg-opacity-10 fixed-top py-3" style="position:relative">
    <div class="container px-4 px-lg-5">
        <a class="navbar-brand" href="index.html">
            <img style="height:50px; width:65px;" src="img/f1-abu-dhabi-gp-2017-f1-logo-6614911-removebg-preview.png" />
        </a>
        <button class="navbar-toggler" type="button" data-bs-toggle="collapse" data-bs-target="#navbarSupportedContent" aria-controls="navbarSupportedContent" aria-expanded="false" aria-label="Toggle navigation">
            <span class="navbar-toggler-icon"></span>
        </button>
        <div class="collapse navbar-collapse">
            <ul class="navbar-nav ms-auto my-2 my-lg-0">
                <li class="nav-item"><a class="nav-link" href="home.html" style="color:white"><b>Home</b></a></li>
                <li class="nav-item"><a class="nav-link" href="Circuits.html" style="color: white"><b>Circuits</b></a></li>
                <li class="nav-item"><a class="nav-link" href="Drivers.html" style="color: white"><b>Drivers</b></a></li>
                <li class="nav-item"><a class="nav-link" href="Timeline.html" style="color: white"><b>Champions</b></a></li>
            </ul>
            <div class="dropdown">
                <a style="color: white" class="btn dropdown-toggle" href="#" role="button" id="dropdownMenuLink" data-bs-toggle="dropdown" aria-expanded="false">
                </a>

                <ul class="dropdown-menu">
                    <li><a class="dropdown-item" href="FAQs.html">FAQ's</a></li>
                    <li><a class="dropdown-item" href="AboutUs.html">About us</a></li>

                </ul>
            </div>
        </div>
    </div>
</nav>
<br />


<div class="row" style="margin:auto">
    <div class="container d-flex flex-row" style="margin:auto; min-width:50px; max-width: 600px">
        <div class="py-3 container"><input class="form-control" Id="SearchText" placeholder="Search circuit" /></div>
        <div class="py-3 container"><button type="button" id="clickCir" class="btn btn-secondary">Search</button></div>
    </div>
    <div class="d-none text-danger col-form-label container" id="NomeError">
        <center><i class="fa fa-exclamation-triangle"></i><b>É necessário selecionar um circuito</b></center>
    </div>
</div>
<div class="container" style="margin:auto; background-color:white; max-width:900px; min-height:900px; border-radius:10px;">
    <div class="container" id="infoId" style="margin:auto; justify-content:center"> </div>
</div>

<script src="Scripts/bootstrap.min.js"></script>
<script src="../Scripts/knockout-3.5.1.js"></script>
<script src="../Scripts/jquery-3.6.0.min.js"></script>
<script src="Scripts/jquery-ui-1.13.0.js"></script>
<script src="Circuit.js"></script>

ANSWER

Answered 2022-Jan-27 at 00:46

Inside of your #index { } delete position: fixed; to be able to scroll.

Source https://stackoverflow.com/questions/70868591

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Install knockout

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Documentation on the project's website
Online examples at http://knockoutjs.com/examples/

Support

For any new features, suggestions and bugs create an issue on GitHub. If you have any questions check and ask questions on community page Stack Overflow .

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