StringDelete

StringDelete["string", patt] yields the string obtained by deleting from string all occurrences of anything matching the string pattern patt.

StringDelete[patt] represents an operator form of StringDelete that can be applied to an expression.

Examples

Delete substrings:

StringDelete["the cat in the hat", "the "]
(* "cat in hat" *)

Delete pattern matches:

StringDelete["abc123def", DigitCharacter]
(* "abcdef" *)

Please visit the official Wolfram Language Reference for more details.