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Questions tagged [reactjs]

React is a JavaScript library for building user interfaces. It uses a declarative, component-based paradigm and aims to be both efficient and flexible.

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6 views

compilation error of .ts and .scss files in react project

I'm having the following erorr in my localhost when I run npm start for my react project: ./src/component7.scss (./node_modules/css-loader/dist/cjs.js??ref--5-oneOf-6-1!./node_modules/postcss-loader/...
-2
votes
0answers
12 views

Next.js functions

const files = fs.readdirSync("posts"); const slugs = files.map((filename) => filename.replace(".md", "")); slugs.map((slug) => { const contentWMeta = fs ...
3
votes
0answers
21 views

immer property change doesn't trigger update in functional component

I store a Node entity in state. When I click the button, I want to change the property 'title', and trigger component update to display the new title value. Nothing happens in the function component, ...
0
votes
0answers
6 views

NextJS redirection to /error page leaves me in an unwanted render

Im not really sure how to describe this problem but ill do my best. I have a nextJS project. With its server and SRC(site) folders. One of the files that the site has is _error.jsx import React from &...
0
votes
0answers
4 views

How to customize the border color, width, and height of Material-UI Text Field with styled-components

I'm getting a bit confused about how to customize Material-UI components. I've read through the docs and a team member said that they use styled-components. I'm trying to change the border color of a ...
0
votes
0answers
10 views

Yup + useFormik - conditional required field based on some parameter

I have a validation schema object: SCHEMA = object().shape({ ... someField: string().required(validation_keys.required), ... }); I am using useFormik within my component: const formik = ...
0
votes
0answers
16 views

react port localhost//3001/login not found

I am trying to make a post request through axios but it is not working and console log error shows saying that react localhost//3000/login not found. Here is my main login page: import React, { ...
0
votes
0answers
15 views

Javascript / React- is there any js search / filter library that increases performance vs vanilla js? [closed]

is there any js search / filter library that increases performance vs vanilla js ? Ive been researching and found a few libraries but cant tell if there is any benefit performance wise over just ...
0
votes
0answers
6 views

Using local reference source image in react chakra ui

So I want to show an image and here's my code, I try using src="../styles/images/myImage.jpg" but my image doesn't show. This problem doesn't raise if I do this instead import myImage from &...
-1
votes
1answer
12 views

How to add attribute selected to select React?

I have this code {categories.map((category, index) => { return( <option value={category._id} key={index}>{category.name}</option> ) })} This code display all categories. And I ...
0
votes
1answer
26 views

Is there a way to automatically change a specific text color so it fits the background color?

Okay so let's say I have a group-chat and the owner is able to change the background color of the chat-bubbles. I have 10 different colors which I assign to the users on top of the chat-bubble so not ...
0
votes
1answer
13 views

ReactJS href attribute of collapse can't take props value

When I click the button inside of Collapse.js, the Card component must be shown. But it doesn't get 'props.href1' into href attribute. It gives this error: Line 11:20: Parsing error: Unexpected token,...
2
votes
2answers
41 views

can I use variable declared within a function as a parameter for another function nested inside the function?

I am trying to create a function which basically look like this: function parentFunction (){ const [a,setA]=useState(false); function nestedFunction (a){ if (a===false){do ...
0
votes
1answer
21 views

Why is Current always null for React.createRef() in react typescript

below is my code and console shows that current is always null and I am not sure why. private tree: any; constructor(props) { super(props); this.tree = React.createRef() this.state = { /...
-1
votes
0answers
8 views

Gatsby.js MDXProvider returns string with functions instead of component

MDX provider returns functions as string instead of rendering a provided component. What is rendered: function _extends() { _extends = Object.assign || function (target) { for (var i = 1; i < ...

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