Introduction to Javascript

Like I posted earlier, I will be jotting down my progress on my javascript journey here. So today, I will be writing about what is javascript, why is javascript important and how it can be used in your web applications.

Before you learn javascript, I believe you must have had the basic knowledge of what HTML and CSS are because we'll be making use of them as we progress.

What is Javascript? Javascript is a lightweight, interpreted programming language that is javascript runs instantly on your browser. It is the third layer of standard web technologies(HTML, CSS, JS) and also javascript is called Scripts.

Note: Javascript files end with.js an extension

Why is Javascript important?

  • It is dynamic and helps to add interactivity to our web pages.

  • It runs codes in response to certain events that is when you want to submit a form

  • It has powerful APIs(Application Programming Interface), hence access to numerous complex features. etc

    There are two methods by which you can use javascript on your web page

  • Internal Javascript: It means writing your javascript file directly in your HTML file but it is not recommended.

  • External Javascript: It means separating your javascript file from your HTML file and you must reference your javascript file in your HTML file using the script tag.

    For example <script src="index.js"></script>

You can drop your comments if you learnt something from this. To be continued...