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How to use REGEXP in JavaScript?

In JavaScript, you can use regular expressions with RegExp () methods: test () and exec (). There are also some string methods that allow you to pass RegEx as its parameter. They are: match (), replace (), search (), and split (). Executes a search for a match in a string and returns an array of information.

What does the regex \ mean in JavaScript?

The JavaScript RegExp class represents regular expressions, and both String and RegExp define methods that use regular expressions to perform powerful pattern-matching and search-and-replace functions on text. Click to see full answer. Likewise, people ask, why do we use regex in JavaScript?

How to use grep with regex?

Grep is often used along with regular expressions to search for patterns in text. Let’s see some practical examples of regex with grep. 1. Matching a word irrespective of its case. Sometimes in a text, the same word can be written in different ways. This is most commonly the case with proper nouns. Instead of starting with an uppercase letter ...

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