Call All Fns

Steven-Failla_mmcgh

This code defines a function that takes an array of functions as its arguments. The function returns a function that takes an array of arrays as its arguments.

type CallAllFns = <
  Args extends Array<unknown>,
  Fns extends Array<((...args: Args) => unknown) | undefined>
>(
  ...fns: [...Fns]
) => (...args: [...Args]) => void;

const callAll: CallAllFns =
  (...fns) =>
  (...args) =>
    fns.forEach(fn => fn?.(...args));