This function replaces the first substring matching the given regular expression with the given replacement.


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



Parser expressionDescription


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


This example returns:

He_lo World



Parameters used in this function

ParameterInput (data type)Description
text

Any given text.
regex

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

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



This function returns a


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

Parser expressionValue


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


He_lo World


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


He__o Wor_d


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




Use cases and examples



Short description

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

Output