Unitize

Unitize[x] gives 0 when x is zero, and 1 when x has any other numerical value.

Examples

Unitize a number:

Unitize[5]
(* 1 *)

Unitize[0]
(* 0 *)

Apply to a list:

Unitize[{-3, 0, 2, 0, 5}]
(* {1, 0, 1, 0, 1} *)

Please visit the official Wolfram Language Reference for more details.