<JavaScript> Reference

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JAVASCRIPT REFERENCE

JavaScript (or JS) enables users to create interactive webpages and is an essential code to learn for websites and web applications. Most modern websites use JavaScript.

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The JavaScript Reference serves as library to define various JS elements such as arrays, date, json, math, operators and regular expressions (regexp) to help you build your website.

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JavaScript RegExp

A regular expression is an object that describes a pattern of characters. Regular expressions are used to perform pattern matching and search and replace functions.

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For Example:

Valid 10-digit phone number: ^\d{10}$

NAME

DESCRIPTION

CATEGORY

(x|y)

Find any of the alternatives specified

Brackets

[0-9]

Find any character between brackets (number)

Brackets

[^0-9]

Find any character NOT between the brackets (not number)

Brackets

[^abc]

Find any character NOT between brackets

Brackets

[abc]

Find any character between brackets

Brackets

.

Find a single character, except newline or line terminator

Metacharacters

\0

Find a NULL character

Metacharacters

\B

Find a match NOT at the beginning or end of a word

Metacharacters

\D

Find a non-number character

Metacharacters

\S

Find a non-whitespace character

Metacharacters

 

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