index.md

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title: regexp:replace()
slug: Web/EXSLT/regexp/replace

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regexp:replace() replaces the portions of a string that match a given regular expression with the contents of another string.

Syntax

regexp:replace(originalString, regExpString, flagsString, replaceString)

Parameters

• originalString

  • : The string perform a search-and-replace operation upon.

• regExpString

  • : The JavaScript style regular expression to evaluate.

• flagsString

  • : The string containing character flags.

• replaceString

  • : The string with which the matched substrings are to be replaced.

The character flags are:

• g - Global replace

  • : If this flag is specified, all occurrences of the regular expression within the originalString are replaced. Otherwise only the first occurrence is replaced.

• i - Case insensitive match

  • : If this flag is specified, the match is performed in a case insensitive fashion.

Returns

The revised version of the string.

Specifications

EXSLT - REGEXP:REPLACE