learn-react | Examples and modules that shows you how to use React | Frontend Framework library

by svenanders JavaScript Version: Current License: No License

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kandi X-RAY | learn-react Summary

learn-react is a JavaScript library typically used in User Interface, Frontend Framework, React, Nodejs applications. learn-react has no bugs, it has no vulnerabilities and it has low support. You can download it from GitHub.

This repo is a learning tool for React. Each single module is meant to show or highlight a feature or thing you can do with React. Fork and add modules if you want to showcase something.

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learn-react has a low active ecosystem.

It has 95 star(s) with 17 fork(s). There are 8 watchers for this library.

It had no major release in the last 6 months.

There are 1 open issues and 0 have been closed. There are no pull requests.

It has a neutral sentiment in the developer community.

The latest version of learn-react is current.

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learn-react has 0 bugs and 0 code smells.

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learn-react has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.

learn-react code analysis shows 0 unresolved vulnerabilities.

There are 0 security hotspots that need review.

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learn-react does not have a standard license declared.

Check the repository for any license declaration and review the terms closely.

Without a license, all rights are reserved, and you cannot use the library in your applications.

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learn-react releases are not available. You will need to build from source code and install.

Installation instructions are not available. Examples and code snippets are available.

learn-react saves you 12023 person hours of effort in developing the same functionality from scratch.

It has 24270 lines of code, 0 functions and 398 files.

It has low code complexity. Code complexity directly impacts maintainability of the code.

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Community Discussions

Trending Discussions on learn-react

Cannot read property 'title' of null using vuejs 3

setState in React + TypeScript: FormData is not of type 'Blob'

Why I can't use req.body as parameter directly?

Variable is defined but GraphQL cannot find it

Getting an error TypeError: Cannot read property 'map' of undefined in React

react BrowserRouter resulting in "You should not use or withRouter() outside a "

redux-persist does't work, rehydrate only occur once

Problems In JavaScript Arrow Function

Using UseEffect to Call an Endpoint

Fetching Reddit posts in React using Axios, weird JSON path

QUESTION

Cannot read property 'title' of null using vuejs 3

Asked 2021-May-02 at 17:32

i am new to vuejs3, i tried using json with vuejs3, i displayed the courses in view blog / index, and when clicking on a course in an index it redirect to details of that course clicks, in my case it gives me error: Uncaught (in promise) TypeError: Cannot read property 'title' of null.

blog/index.vue

...

ANSWER

Answered 2021-May-02 at 17:32

The problem is with your blog/show.vue file.

Notice how in your data, post is set to null.

When your component mounts, it attempts to read post.title and post.content but it fails because post does not yet contain those properties.

The method to retrieve and set the post data is only run after the component has been mounted.

One way would be to not display the

and

tags until post data is no longer null by using an attribute like v-if="post"

Alternatively, you can set some default values to your post by making it an object:

Source https://stackoverflow.com/questions/67359217

QUESTION

setState in React + TypeScript: FormData is not of type 'Blob'

Asked 2020-Nov-06 at 12:15

I want to create an upload button using ReactJS with typescript. For now, I just want to do it super simple, and followed this tutorial for "classic" ReactJS: https://www.js-tutorials.com/react-js/learn-react-file-upload-in-5-minute/

Here is my version using with typescript:

...

ANSWER

Answered 2020-Nov-06 at 12:15

As the error said, the argument can be null, then, we should add:

Source https://stackoverflow.com/questions/64713013

QUESTION

Why I can't use req.body as parameter directly?

Asked 2020-Oct-20 at 11:48

I am learning node.js.

Here is the code. It works well.

However, I don't understand why I can't use req.body as a parameter directly?

...

ANSWER

Answered 2020-Oct-20 at 11:48

the reason why you can't use :

Source https://stackoverflow.com/questions/64444286

QUESTION

Variable is defined but GraphQL cannot find it

Asked 2020-Jul-15 at 13:28

Just learning GraphQL, I have this query:

...

ANSWER

Answered 2020-Jul-15 at 13:28

You only declared two variables as part of your operation:

Source https://stackoverflow.com/questions/62915611

QUESTION

Getting an error TypeError: Cannot read property 'map' of undefined in React

Asked 2020-Jun-04 at 11:09

I am trying to display Node.JS API's data using React and getting this error. The data is stored using MongoDB. It doesn't give out error while displaying the upvotes. It only gives error while printing out the comments.

This is the data that I am trying to print. Mainly I am trying to print the comments. I am not sure what mistake I am doing here while printing the data.

...

ANSWER

Answered 2020-Jun-04 at 10:10

Try using logical && operator for conditional rendering:

Source https://stackoverflow.com/questions/62191951

QUESTION

react BrowserRouter resulting in "You should not use or withRouter() outside a "

Asked 2020-Apr-09 at 14:01

I am hitting this problem constantly, and have been stuck at it for a long time now. I am new to mbdreact library and I have been trying this example of theirs from this link. This has given me too many problems in debugging and understanding what is going on.

Problem :

...

ANSWER

Answered 2019-Jan-02 at 11:31

Your react-router-dom version (beta.6) is incompatible with mdbreact library. If you install stable version ^4.3.1 everything will work fine.

Source https://stackoverflow.com/questions/53993475

QUESTION

redux-persist does't work, rehydrate only occur once

Asked 2020-Mar-30 at 15:50

I am currently working with react 15.4.2 and redux, i am going to keep my react/redux state whenever the browser refresh. and i found people are suggesting redux-persist but when i follow the instruction of basic usage, it doesn't work at all, all state returning to empty again when i refresh my browser. this is what shown by logger

rehydrate only show once (at the first time ), and never happen again while doing another action. and here is my store.js

...

ANSWER

Answered 2020-Mar-30 at 15:50

I believe you need to pass autorehydrate to createStore not composeWithDevTools

Source https://stackoverflow.com/questions/44381242

QUESTION

Problems In JavaScript Arrow Function

Asked 2019-Nov-11 at 17:56

I'm a newbie I've download some source in this link https://github.com/the-road-to-learn-react/react-redux-example i have some proplem in file src/app.js line 4

...

ANSWER

Answered 2019-Nov-11 at 17:56

Arrow function syntax is kinda like this

Source https://stackoverflow.com/questions/58806310

QUESTION

Using UseEffect to Call an Endpoint

Asked 2019-Sep-04 at 10:57

I'm using the excellent work of Robin Wieruch to understand how to make a call to an API Endpoint. Here's one of his projects: https://github.com/the-road-to-learn-react/react-hooks-introduction

Shown below is a modified version of his useDataApiHook-example. With it I wired up two buttons, which then give me 3 ways to query an endpoint. I've chosen to use the same endpoint in all cases but have tested it with different endpoints and it seems to work fine.

...

ANSWER

Answered 2019-Sep-04 at 10:57

Suppose I don't want to call the query upon component load (and don't want a GET request going out upon load). How would one do that?

You may pass an empty string to your hook and create a condition that fetch isn't triggered when API endpoint is empty:

Source https://stackoverflow.com/questions/57751251

QUESTION

Fetching Reddit posts in React using Axios, weird JSON path

Asked 2019-Jul-21 at 08:28

I'm trying to get the titles of reddit posts from a subreddit in React, using Axios for fetching.

I can fetch the JSON from here, and would like to get the data of each object (post/comment) separately (so I can show titles, post text and the like in the render() part of the component).

Here's the first lines of that JSON, pretty-printed:

...

ANSWER

Answered 2019-Jul-21 at 08:28

That's how axios parses the response json object. They store it under their own personal data key. It just so happens that within the json object provided by Reddit, they also have a field called data that holds the children array you want.

It might be more helpful to name your variables like so:

Source https://stackoverflow.com/questions/57131481

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