Creating a callback function in JavaScript requires a few steps. Firstly, you should define the callback function as a regular function, an anonymous function, or an arrow function. You can opt to ...

In some cases, changing the object in the variable affects the original JavaScript object. Variables that contain user-defined objects represent the actual object. A change to the object in the ...

Try it out in the browser console: JavaScript exhibits "function-level" scope. This means that if a function is defined inside another function, the inner function has access to all the parameters of, ...

Classes in ECMA 2015 is special function so like functions classes can be defined by Class Declaration and Class Expression but both have some differences as well. So, Today in this tutorial I will ...

To create a new class, use the following syntax: var MyClass = Class(prototype); var Foo = Class({ _constructor: function (name) { this.name = name; }, say: function ...