Q91. What is a storage event and its event handler?
The StorageEvent is an event that fires when a storage area has been changed in the context of another document. Whereas onstorage property is an EventHandler for process...
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Q92. Why we need to be careful when spreading props on DOM elements?
When we _spread props_ we run into the risk of adding unknown HTML attributes, which is a bad practice. Instead we can use prop destructuring with `...rest` operator, so ...
Q93. Why do you need web storage?
Web storage is more secure, and large amounts of data can be stored locally, without affecting website performance. Also, the information is never transferred to the serv...
Q94. How do you memoize a component?
There are memoize libraries available which can be used on function components. For example `moize` library can memoize the component in another component. ```jsx harmony...
Q95. How do you check web storage browser support?
You need to check browser support for localStorage and sessionStorage before using web storage, ```javascript if (typeof Storage !== "undefined") { // Code for localStora...
Q96. How you implement Server Side Rendering or SSR?
React is already equipped to handle rendering on Node servers. A special version of the DOM renderer is available, which follows the same pattern as on the client side. `...
Q97. How do you check web workers browser support?
You need to check browser support for web workers before using it ```javascript if (typeof Worker !== "undefined") { // code for Web worker support. } else { // Sorry! No...
Q98. How to enable production mode in React?
You should use Webpack's `DefinePlugin` method to set `NODE_ENV` to `production`, by which it strip out things like propType validation and extra warnings. Apart from thi...
Q99. Give an example of a web worker
You need to follow below steps to start using web workers for counting example 1. Create a Web Worker File: You need to write a script to increment the count value. Let's...
Q100. Do Hooks replace render props and higher order components?
Both render props and higher-order components render only a single child but in most of the cases Hooks are a simpler way to serve this by reducing nesting in your tree.