replaceFirst()

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

Syntax

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

Parser expression	Description
replaceFirst("Hello World", "l", "_")	This example returns the following text : `"He_lo World"`

Parameters used in this function

Parameter	Input (data type)	Description
`text`	TEXT	Any given text.
`regexp`	TEXT	A valid regeular expression that grabs the substring to be replaced.
`replacement`	TEXT	This text will replace the substring found by the regexp.

This function returns a TEXT

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

replaceFirst("Hello World", "l", "_")	replaceAll("Hello World", "l", "_")
"He_lo World"	"He__o World"