JavaScript from Beginner to Professional

8

Built-In JavaScript Methods

We have just covered most of the basic building blocks in JavaScript. Now it's time to look at some powerful built-in methods that will make your life easier that we haven't seen yet. Built-in methods are functionality that we get out of the box with JavaScript. We can use these methods without having to code them first. This is something we have done a lot already, for example, console.log() and prompt().

Many built-in methods belong to built-in classes as well. These classes and their methods can be used at any time because JavaScript has already defined them. These classes exist for our convenience, since they are very common things to need, such as the Date, Array, and Object classes.

The ability to harness ...