RegExp.escape()

The RegExp.escape() static method escapes any potential regex syntax characters in a string, and returns a new string that can be safely used as a literal pattern for the RegExp() constructor.

When dynamically creating a RegExp with user-provided content, consider using this function to sanitize the input (unless the input is actually intended to contain regex syntax). In addition, don’t try to re-implement its functionality by, for example, using String.prototype.replaceAll() to insert a before all syntax characters. RegExp.escape() is designed to use escape sequences that work in many more edge cases/contexts than hand-crafted code is likely to achieve.

Syntax example: RegExp.escape(string)