Function throwError

javascript/2704-to-be-or-not-to-be.js:10–12

(message)

 */
const expect = (val) => {
    const throwError = (message) => {
        throw new Error(message);
    };
    return {
        toBe: (expected) => val === expected || throwError('Not Equal'),
        notToBe: (expected) => val !== expected || throwError('Equal'),