JavaScript and HTML Basics
JavaScript and HTML are the main components of web development. HTML is used to create the layout, while JavaScript ensures interactivity.
In this article you will get familiar with basic concepts of HTML and JavaScript and learn how to use them together.
What is HTML?
HTML (HyperText Markup Language) is a markup language used for creating web pages. HTML gives structure to the page and defines its content.
The following are some main elements in HTML:
<h1>- heading<p>- paragraph<a>- link
What is JavaScript?
JavaScript is a programming language used to add interactivity to web pages. With the help of JavaScript, it's possible to communicate with users, update the page and add various effects.
The following are basic concepts in JavaScript:
- Variables - used for storing data.
- Functions - a part of code designed for reuse.
- Events - related to user actions (e.g., clicking).
Using HTML and JavaScript Together
You can add interactive elements on the page by using HTML and JavaScript together. For example, you can create a button in HTML and attach functions to it via JavaScript.
The following example shows an HTML button and a JavaScript function:
<button onclick="salomBer()">Salom ber</button>
<script>
function salomBer() {
alert("Hello, world!");
}
</script>
FAQ
What is the difference between HTML and JavaScript?
HTML defines the structure of a page while JavaScript adds interactivity to it.
How can you use JavaScript in HTML?
You can write JavaScript code inside the <script> tag within an HTML file. You can also add it as a separate .js file.
What elements are available in HTML?
In HTML there are headings, paragraphs, links, images and other elements.
What resources are available to learn JavaScript?
There are online courses, books and video lessons for learning JavaScript. Some popular platforms include Codecademy, freeCodeCamp and Udemy.
Conclusion
JavaScript and HTML play an important role together in web development. HTML creates the page while JavaScript ensures interactivity. By mastering these basic concepts you can create effective web pages.
