Q2441. What is a Short circuit condition?
Short circuit conditions are meant for condensed way of writing simple if statements. Let's demonstrate the scenario using an example. If you would like to login to a por...
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Q2442. How to use TypeScript in `create-react-app` application?
Starting from react-scripts@3.3.0+ releases onwards, you can now optionally start a new app from a template by appending `--template [template-name]` to the creation comm...
Q2443. What is the easiest way to resize an array?
The length property of an array is useful to resize or empty an array quickly. Let's apply length property on number array to resize the number of elements from 5 to 2, `...
Q2444. Does the statics object work with ES6 classes in React?
No, `statics` only works with `React.createClass()`: ```javascript someComponent = React.createClass({ statics: { someMethod: function () { // .. }, }, }); ``` But you ca...
Q2445. What is an observable?
An Observable is basically a function that can return a stream of values either synchronously or asynchronously to an observer over time. The consumer can get the value b...
Q2446. Why are inline ref callbacks or functions not recommended?
If the ref callback is defined as an inline function, it will get called twice during updates, first with null and then again with the DOM element. This is because a new ...
Q2447. What is the difference between function and class declarations?
The main difference between function declarations and class declarations is `hoisting`. The function declarations are hoisted but not class declarations. **Classes:** ```...
Q2448. What are HOC factory implementations?
There are two main ways of implementing HOCs in React. 1. Props Proxy (PP) and 2. Inheritance Inversion (II). But they follow different approaches for manipulating the _W...
Q2449. What is an async function?
An async function is a function declared with the `async` keyword which enables asynchronous, promise-based behavior to be written in a cleaner style by avoiding promise ...
Q2450. How to use class field declarations syntax in React classes?
React Class Components can be made much more concise using the class field declarations. You can initialize the local state without using the constructor and declare clas...