String.replaceFirst()

Signature

String replaceFirst (String s1, String regex, String replacement)

action, condition

Replaces the first substring of this string that matches the given regular expression with the given replacement.

Name	Type	Description
`s1`	`String`	A String to replace characters in.
`regex`	`String`	The regular expression to which the String `s1` is to be matched.
`replacement`	`String`	A String to replace regular expression matches with.

Type	Description
`String`	A string derived from the String `s1` by replacing every occurrence of the regular expression with `replacement`.

none