Grokking Advanced JavaScript
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JavaScript - Regular Expression Syntax and Examples
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Regular expressions are patterns used to match character combinations in strings. In JavaScript, these patterns are used with the RegExp methods, such as test() and exec(), as well as with the String methods, such as match() and replace(). Understanding the syntax is crucial for effective pattern matching.

Syntax

Follow the syntax below to create regular expressions.

var patt = /pattern/modifiers;
  • You can write the regular expression pattern between two backslashes ('/'). After that, you can write modifiers to use with regular expression.

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