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When we use a hook after a condition that may return a value, we get the error "Rendered fewer hooks than expected. This may be caused by an accidental early return statement". To fix this error, you need to move all React hooks to any condition that ...

When we use the useState hook conditionally or after a condition that may return a value, we get the error "React hook 'useState' is called conditionally". To fix the error, move all React hooks above any condition that may return a value....

Use non-null assertions or type assertions to resolve the React.js error "Argument of type 'HTMLElement | null' is not assignable to parameter of type 'Element | DocumentFragment'", for example `const root = createRoot(rootElement!)`....

When we forget to close a tag in the JSX code, the React.js error “Expected corresponding JSX closing tag” appears. To fix the error, you need to use self-closing tags, such as and ensure the order of opening and closing tags in the JSX code....

There are several reasons for the error “createRoot(...): Target container is not a DOM element” in React: Passing an incorrect id to the document.getElementById() method....

To resolve the error "Module not found: Error: Can't resolve 'react-bootstrap'", make sure to install the react-bootstrap package by opening a terminal in the root directory of the project and running the command `npm install react-bootstrap bootstrap...

Props validation is a very useful way to use components correctly. It can avoid many bugs and problems as your application becomes more and more complex. In addition, it can make your program more readable....

React transfers Props. Props are generated when components are encapsulated. Components expose some properties (Props) to the outside world to complete some functions....

Styling — is one of the elements of the front-end triada that every web developer must know: HTML/CSS/JS. On the other hand, there is a large group of web developers who don’t like CSS. They prefer to use some helpers and libraries and basically t...

When we try to pass an element or React component as a parameter to another component but the input parameter is incorrect, the error "JSX element type does not have any construct or call signatures" will appear. To solve this error, you need to use `...

When we use the useEffect hook in our code but forget to import it, it will generate “Uncaught ReferenceError: useEffect is not defined”. To fix the error, you need to import the hook before using it - `import {useEffect} from 'react'`....

To set inline styles in React: Set the style property on an element to an object. Set specific CSS properties and values ​​to style the element. For example, ....

When we use a string as a reference in a function component, we get the error "Function components cannot have string refs". To fix this error, we need to use the useRef() hook to get a mutable ref object that we can use as a component....

To resolve the “Uncaught ReferenceError: process is not defined” error in React, open a terminal in the root directory of your project and update the version of the `react-scripts` package by running `npm install react-scripts@latest` and reinstal...

When we use the useState hook in our code but forget to import it, it generates the error Uncaught ReferenceError: useState is not defined. To fix this error, you need to import the hook before using it import {useState} from react . // ?️...