reactjs Archives - Page 21 of 24

The useState set method is not reflecting a change immediately

I am trying to learn hooks and the useState method has made me confused. I am assigning an initial value to a state ...

April 30, 2022
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React.js inline style best practices [closed]

Closed. This question is opinion-based. It is not currently accepting answers. Want to improve this question? Update the question so it can be ...

April 30, 2022
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Hide keyboard in react-native

If I tap onto a textinput, I want to be able to tap somewhere else in order to dismiss the keyboard again (not ...

April 30, 2022
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Error: ‘node-sass’ version 5.0.0 is incompatible with ^4.0.0

I’ve created a blank React project, using the command: npx create-react-app on npm v7.0.7 and Node.js v15.0.1 Installed: React v17.0.1, node-sass v5.0.0, Then ...

April 29, 2022
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ReactJS – Does render get called any time “setState” is called?

Does React re-render all components and sub components every time setState() is called? If so, why? I thought the idea was that React ...

April 29, 2022
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How to fix missing dependency warning when using useEffect React Hook

With React 16.8.6 (it was good on previous version 16.8.3), I get this error when I attempt to prevent an infinite loop on ...

April 29, 2022
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What’s the difference between “super()” and “super(props)” in React when using es6 classes?

When is it important to pass props to super(), and why? class MyComponent extends React.Component { constructor(props) { super(); // or super(props) ? ...

April 29, 2022
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Perform debounce in React.js

How do you perform debounce in React.js? I want to debounce the handleOnChange. I tried with debounce(this.handleOnChange, 200) but it doesn’t work. function ...

April 29, 2022
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What do multiple arrow functions mean in JavaScript?

I have been reading a bunch of React code and I see stuff like this that I don’t understand: handleChange = field => ...

April 28, 2022
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How to get parameter value from query string?

How can I define a route in my routes.jsx file to capture the __firebase_request_key parameter value from a URL generated by Twitter’s single ...

April 28, 2022
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