When does React decide to re-render a component ?

Prerequisites:

NPM & Node JS React JS React JS lifecycle React JS Hooks...

When does React decide to re-render a component ?

The first rendering will be triggered after the componentWillMount lifecycle. After the React ComponentWillUpdate lifecycle, it is then activated. After mounting a React component, it will listen to any React props or state that has changed. It will, by default, re-render the entire React component and its child components when it detects something has changed....

These are some tips to avoid too many re-renders errors in React:

Don’t change the state in the main body of the component. Use the useEffect hook very cautiously. The second parameter of useEffect is an array of states based on the useEffect will call. So don’t update those states in useEffect otherwise, it will rerender the component again and again. Use React shouldComponentUpdate: React shouldComponentUpdate is a method for optimizing performance, which tells React to stop re-rendering a component, even though it might have changed the state or prop values. Using this approach only if a part stays unchanged or pure while it is used. You are expected to return a Boolean value with the React shouldComponentUpdate method. Return true if it needs to re-render or false to avoid being re-render....

Steps To Create React Application :

Step 1: Create a React application using the following command:...