String.prototype.replace()

The replace() method of String values returns a new string with one, some, or all matches of a pattern replaced by a replacement. The pattern can be a string or a RegExp, and the replacement can be a string or a function called for each match. If pattern is a string, only the first occurrence will be replaced. The original string is left unchanged.

This method does not mutate the string value it’s called on. It returns a new string.

A string pattern will only be replaced once. To perform a global search and replace, use a regular expression with the g flag, or use replaceAll() instead.

Syntax example: replace(pattern, replacement)