The JavaScript Web History API With Practical Examples

The JavaScript Web History API With Practical Examples

Understanding The Web History API in JavaScript. API stands for Application Programming Interface. A Web API is an application programming interface for the web. The web history API is supported by all the browsers. We can build our own Web API using different technologies such as Java or Node and etc.

What is a Web API?

API stands for Application Programming Interface. It is some kind of interface that has a set of functions that allow programmers to access specific features or data of an application, operating system, or other services. A Web API is an application programming interface for the web, It could be for a web browser or a web server. We can build our own Web API using different technologies such as Java or Node and etc. There is also another type of API called Third Party API, It is not built into your browser. you will have to download the code from the Web in order to use it, such as the Youtube API or the Twitter API. So in this article, I decided to give you some knowledge about the Web History API.

The Web History API

The web history API is supported by all the browsers. The window.history object has some useful methods on its prototype which I’m going to show you below. It contains all the websites visited by the user. Let’s open up our console to see this object. Have a look at the example below:

The window.history Object in JavaScript.

The window.history Object in the console.

As you can see, the “window.history” object has some useful methods on its prototype. I will show you some of them in a second.

The History back Method

The history back method loads the previous URL in the history list. It is the same as clicking the “back arrow” in your browser. Let’s have a look at the example below:


<button onclick="myFunction()">Go Back</button>

<script>
function myFunction() {
  window.history.back();
}
</script>

The back( ) method.

When we click the button it will take us to the previous link(URL) in our history list in the browser.

The History go Method

The *go() *method allows us to load a specific URL in our browser history list. Let’s have a look at the example below:


<button onclick="myFunction()">Go Back 2 Pages</button>

<script>
function myFunction() {
  window.history.go(-2);
}
</script>

The go() method.

So, when we click the button element, we will go 2 pages back as we specified in the above example(-2).

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