Javascript regex7/21/2023 ![]() Here the flags are optional, I will explain these later in this article. ![]() ![]() Regular Expression Constructor:Įxample: var regexConst = new RegExp('abc') Regular Expression Literal: It can be either created with RegExp constructor, or by using forward slashes ( / ) to enclose the pattern. There are two ways to create a regular expression in Javascript. Regular expressions allow you to check a string of characters like an e-mail address or password for patterns, to see so if they match the pattern defined by that regular expression and produce actionable information. They form a small language of its own, which is a part of many programming languages like Javascript, Perl, Python, Php, and Java. ![]() Regular expressions are a way to describe patterns in a string data. ![]()
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