NumberButton | 购物车商品数量、增加和减少控制按钮
kandi X-RAY | NumberButton Summary
kandi X-RAY | NumberButton Summary
购物车商品数量、增加和减少控制按钮
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Top functions reviewed by kandi - BETA
- Initializes the number button
- Sets the current number
- Set the buy max max
- Set the inventory value
- Set the OnWarnListener for the number button
- Handle text input
- On number input
- Get the number
- Fire warning
- Warning for inventory
- Initializes this NumberButton
- Sets whether this count is editable
- On click
NumberButton Key Features
NumberButton Examples and Code Snippets
Community Discussions
Trending Discussions on NumberButton
QUESTION
I'm new to javascript and am trying to create a Javascript calculator as a learning project
I want the specific arithmetic operators to appear only once until another value is specified in // the calculator Explanations are greatly appreciated
...ANSWER
Answered 2021-Jun-10 at 09:33You can add a test using regular expression if the last digit of display is a number.
QUESTION
let numberButtons = document.querySelectorAll('[data-number]')
let display = document.querySelector('[data-current-operand]')
display.innerHTML = '';
numberButtons.forEach(button => {
button.addEventListener('click', () => {
console.log(button.innerHTML);
display.innerHTML = button.innerHTML;
})
ANSWER
Answered 2021-Jun-08 at 08:40Please try this
QUESTION
I am a beginner in coding and while following YouTube channel WebDevSimplified, I came across below JS code for making a calculator. In the below code, I am not able to understand, how currentOperand and previousOperand are being used without defining? It looks like currentOperand is referencing to currentOperandTextElement and previousOperand to previousOperandTextElement, However its not defined anywhere in code. below is the link for GitHub repo
https://github.com/WebDevSimplified/Vanilla-JavaScript-Calculator/blob/master/script.js
Request you all to help me understand. Thank you so much.
...ANSWER
Answered 2021-May-25 at 16:42currentOperand and previousOperand are dynamically being created as fields on the class Calculator. Since both of them were not defined in the constructor, their initial value is undefined.
For example, as operations are performed on the calculator by appendNumber, this.currentOperand is assigned a value, which can be used later by chooseOperation() and compute().
QUESTION
I'm trying to center an HTML table in CSS but the code is not working. I have tried justify-content, align-content, margins, etc but can't seem to get anything to work. The website needs to be responsive so all values need to be percentages (which makes it a bit harder). Additionally, for some reason, some of the columns are different widths to the last one?? Not sure about that either. I'll put the code below.
...ANSWER
Answered 2021-May-11 at 07:37Add position absolute to your table. Then use transform to position it at center.
QUESTION
I do not know how to make my buttons resizable, and I could not figure it out. I have tried to use:
...ANSWER
Answered 2021-Apr-25 at 09:28You're not stuck to one layout manager, in fact, the panel containing the buttons is a really good use of compound layout managers, where the button panel is focusing on one job, but which allows it to be integrated into another layout as required.
This is a really basic example which makes use of a GridBagLayout is the outer layout manager. You could also add the function buttons to their own panel and adjust their layout independently based on your needs.
QUESTION
I'm working on an app which supports two languages(English & Arabic). I have a loginCViewController in which I have a UIButton and UITextField. When I switch to Arabic, my UIButton semanticContentAttribute is forced RightToLeft which I don't want.
Arabic
English
This is what I have tried so far, but My UIButton still changes it's semanticContentAttribute from RightToLeft when switched to Arabic Language.
I want my loginViewController to look same for both languages.
ANSWER
Answered 2021-Apr-15 at 10:44hey may be this code will help you because it's working for me.
QUESTION
So i am building a calculator. I am trying to get the decimals to display on screen. That is not the problem. After i click the decimal button; and then a random number button, the zero to the right of the decimal point disappears. I believe this is happening because i am using the replace method to get rid of the zero in the numbers function. This is a very simple implementation that i feel like i should already know. I wanted to know if anybody had any ideas?
...ANSWER
Answered 2021-Mar-19 at 04:37Try this below code. I have added an if condition, if (!str.includes(".")) which will now only replace 0, if there is no decimal.
QUESTION
I am currently trying to code a basic calculator, and I ran into a wall. I am trying to display multiple numbers on the output, I did declare currentOperand as an empty variable in the clear(). In the appendNumber() if I set the this.currentOperand equal to number it will display but only single digit. It was advise to return a string value in the this.currentOperand to output multiple numbers.
JS Code
...ANSWER
Answered 2021-Jan-25 at 03:22Is the current operand not a string already? So you wouldn't need to convert it to a string.
So
QUESTION
I wrote a code composed of HTML, CSS, and javascript and it's supposed to be a calculator in a website. however, since i'm not very experienced with coding in javascript, i ran into some problems. for now i've only coded the part for the number input (not for operations and deleting) and when i click on any number, nothing comes up in the display box. can anyone help me please?
...ANSWER
Answered 2021-Jan-19 at 20:16appendNumber doesn't append. It overwrites. doesn't have innerText. It has a value:
QUESTION
ANSWER
Answered 2020-Dec-10 at 04:15this.previousOperandTextElement.innerText = this.previousOperand is causing the "undefined" to show, since this.previousOperand is undefined. To fix it, add this.previousOperand = '' to your constructor() function.
Community Discussions, Code Snippets contain sources that include Stack Exchange Network
Vulnerabilities
No vulnerabilities reported
Install NumberButton
You can use NumberButton like any standard Java library. Please include the the jar files in your classpath. You can also use any IDE and you can run and debug the NumberButton component as you would do with any other Java program. Best practice is to use a build tool that supports dependency management such as Maven or Gradle. For Maven installation, please refer maven.apache.org. For Gradle installation, please refer gradle.org .
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