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negate

TS JS Deno

Negates a predicate function.

Take a predicate function and apply the not operator (!) to it with its arguments.

typescript
export const negate =
  (func: Function) =>
  (...args: any[]) =>
    !func(...args);
typescript
[1, 2, 3, 4, 5, 6].filter(negate((n) => n % 2 === 0)); // [ 1, 3, 5 ]