Q311. What is a Regular Expression?
A regular expression is a sequence of characters that forms a search pattern. You can use this search pattern for searching data in a text. These can be used to perform a...
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Q312. How React PropTypes allow different types for one prop?
You can use `oneOfType()` method of `PropTypes`. For example, the height property can be defined with either `string` or `number` type as below: ```javascript Component.p...
Q313. What are the string methods that accept Regular expression?
There are six string methods: `search()`, `replace()`, `replaceAll()`, `match()`, `matchAll()`, and `split()`. The `search()` method uses an expression to search for a ma...
Q314. Can I import an SVG file as react component?
You can import SVG directly as component instead of loading it as a file. This feature is available with `react-scripts@2.0.0` and higher. ```jsx harmony import { ReactCo...
Q315. What are modifiers in regular expression?
Modifiers can be used to perform case-insensitive and global searches. Let's list some of the modifiers, | Modifier | Description | | -------- | -------------------------...
Q316. What is render hijacking in react?
The concept of render hijacking is the ability to control what a component will output from another component. It means that you decorate your component by wrapping it in...
Q317. What are regular expression patterns?
Regular Expressions provide a group of patterns in order to match characters. Basically they are categorized into 3 types, 1. **Brackets:** These are used to find a range...
Q318. How to pass numbers to React component?
We can pass `numbers` as `props` to React component using curly braces `{}` where as `strings` in double quotes `""` or single quotes `''` ```jsx import React from "react...
Q319. What is a RegExp object?
RegExp object is a regular expression object with predefined properties and methods. Let's see the simple usage of RegExp object, ```javascript var regexp = new RegExp("\...
Q320. Do I need to keep all my state into Redux? Should I ever use react internal state?
It is up to the developer's decision, i.e., it is developer's job to determine what kinds of state make up your application, and where each piece of state should live. So...