Regular Expressions in JavaScript
Writing Regex in JavaScript and introduction to the RegExp class of objects.
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We know that literals and positional/frequency quantifiers are used to create more elaborate patterns. In this lesson, we will how to write RegEx in JavaScript.
Syntax in JavaScript
There are two formats when writing a RegEx in JavaScript.
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var regex1 = /[a-b]*/; // Create a regex and assign to regex1var regex2 = RegExp('[a-b]*'); // Create a regex and assign to regex2console.log(regex1,regex2); // Print the regex variables
In the first format (line 1), use the / operator to tell JavaScript to create a RegEx. ...