JSFiddle - React, Tailwind, and code Playground

by Aakash Khapare M

JavaScript

let MyArray = function(a) {
	if (typeof a !== "object" && !!a.length) {
  	throw Error('Argument should be an array');
  }
	this.nums = a;
  return this;
}
MyArray.prototype.toString = function() {
	return this.nums.join(' :: ');
}
let a = new MyArray(['asdfasdf',1,2,3,4]);
console.log(a.length);

console.log(a.toString());
console.log(a.numbs.toString());