30 Days of Javascript 9 - Return Length of Arguments Passed

Write a function argumentsLength that returns the count of arguments passed to it.

Example 1:

Input: argsArr = [5] Output: 1 Explanation: argumentsLength(5); // 1

One value was passed to the function so it should return 1. Example 2:

Input: argsArr = [{}, null, “3”] Output: 3 Explanation: argumentsLength({}, null, “3”); // 3

Three values were passed to the function so it should return 3.

/**
 * @return {number}
 */
var argumentsLength = function (...args) {
  return args.length;
};

/**
 * argumentsLength(1, 2, 3); // 3
 */