Java script is lightweight, interpreted, web scripting programming language.
javascript is also called dynamic programming language which is used to create dynamic web pages.
javascript support object-oriented paradigms.
How to write javascript code?
To write javascript code we require one code editor and web browsers to run javascript code.
Code Editors
- Notepad
- Notepad++
- Sublime text3 and many more
Web browsers
- Google chrome
- Microsoft edge
- Mozilla firefox
- Opera
- UC Browser and many more
The first program in javascript
There are two way to write js code and run code
- Using <script> tag
- Using a file with .js extension
Using <script> tag:
<html>
<head>
<title>Js code using script tag</title>
</head>
<body>
<script>
console.log(“welcome to javascript”);
</script>
</body>
</html>
Using file with .js extension
document.write(“Welcome to javascript”);
save this file as first.js
create new html file with extension .html as first.html
<html>
<head>
<title></title>
</head>
<body>
<script src=”first.js”></script>
</body>
</html>