There are no in-built functions and properties available to calculate the length of associative array object here. However, there are …

Function Expression var foo = function foo(){ return 12; }; In JavaScript, variable and functions are hoisted. Let’s take function hoisting first. Basically, …

var foo = function(){ // Some code }; function bar(){ // Some code }; The main difference is the function foo is …

var trees = [“redwood”,”bay”,”cedar”,”oak”,”maple”]; delete trees[3]; When you run the code above and type console.log(trees); into your Chrome developer console, you will …

The best way to find out whether or not an object is an instance of a particular class is to …

For instance, var arrayList = [‘a’,’b’,’c’,’d’,’e’,’f’]; How can we empty the array above? There are a couple ways we can …

console.log(mul(2)(3)(4)); // output : 24 console.log(mul(4)(3)(4)); // output : 48 Below is the answer followed by an explanation to how …

A closure is a function defined inside another function (called the parent function), and has access to variables that are …

One of the drawbacks of creating true private methods in JavaScript is that they are very memory-inefficient, as a new …