Function isAckIdValid

packages/socket.io-parser/lib/index.ts:399–401

(id: unknown)

  };

function isAckIdValid(id: unknown) {
  return id === undefined || isInteger(id);
}

// see https://stackoverflow.com/questions/8511281/check-if-a-value-is-an-object-in-javascript
function isObject(value: any): boolean {