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title	done

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Short description

Replaces the first substring matching a given regular expression with a given replacement.

Output

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subtle	true
title	text

UI Text Box

size	medium
type	info

This function replaces the first substring matching the given regular expressionwith the given replacement.

Code Block

language	bash
title	Syntax
linenumbers	true

replaceFirst(text, regex, replacement) #Output : Text

UI Expand

title	Examples

Parser expression

Description

Code Block

language	bash
linenumbers	true

%{replaceFirst("Hello World", "l", "_")}

This example returns:

He_lo World

UI Expand

title	Additional information

Parameters used in this function

Parameter Input (data type) Description

text

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subtle	true
title	text

Any given text.

regex

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subtle	true
title	text

A valid regular expression that grabs the substring to be replaced.

replacement

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subtle	true
title	text

This text will replace the first substring found by the regex.

UI Expand

title	Output

This function returns a

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subtle	true
title	text

UI Text Box

type	tip

If you want to replace all matching occurrences with the replacement, have a look at the replaceAll() function.

Parser expression

Value

Code Block

language	bash
linenumbers	true

%{replaceFirst("Hello World", "l", "_")}

He_lo World

Code Block

language	bash
linenumbers	true

%{replaceAll("Hello World", "l", "_")}

He__o Wor_d

UI Text Box

type	tip

If you don't want to use a regular expression, have a look at the findReplaceFirst() function.

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Old Version 5

New Version 6

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