replace()

Syntax

replace(string, searchStr, replaceStr)

Usage

This function replaces searchStr with replaceStr, then returns the modified string. If any of the parameters are null, then the function returns null. If searchStr is an empty string, the function returns null. This function is case-sensitive.

Example

replace("Watson, come quickly.", "quickly", "slowly") == "Watson, come slowly."
replace("Watson, come quickly.", "o", "a") == "Watsan, came quickly."
replace("Watson, come quickly.", "", "Mr.") == null