JavaScript arrays are versatile structures that allow you to store and manipulate collections of data. This cheat sheet provides a detailed guide to array properties, methods, and examples for each to help you get started or refresh your knowledge. Array Properties constructor let arr = [1, 2, 3];console.log(arr.constructor); // Output: function Array() { [native code] } let str = "Hello";console.log(str.constructor); // Output: function String() { [native code] } length let arr = [1, 2, 3, 4];console.log(arr.length); // Output: 4 arr.length = 2;console.log(arr); // Output: [1, 2] prototype Array.prototype.sum = function() {return this.reduce((acc, val) => acc + val, 0);};console.log([1, 2, 3].sum());…