JS Introduction – Schools

Web Browser programs are written in JavaScript. JavaScript programming language is used to run program in web browser. With JavaScript you can control how a website behave like changing color , user validation , animation, image slider , make game etc.

Twitter , Facebook , Instagram are samples website which use a lot javascript, With javascript you can control web browser . In this tutorial, i write vanilla javascript ( basic ) as my learning progress and note so i can look when i need it.

Here is simple sample of html file

<!DOCTYPE html> <html> <head> <title>Page Title</title> <style> body { background: #0000cc; } h1 { padding:10px 20px; color: #ff00f0; margin: 20px 30px; background-color: #0cccc0; } p { margin:10px 30px; padding:10px 20px; color:#ff0000; font-weight: bold; background-color: #ccccc0; } </style> </head> <body> <h1>This is a Heading</h1> <p>This is a paragraph.</p> <script> alert('This is alert from javascript'); </script> </body> </html>
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The javascript code is located between <script> Javascript Code </script> and css code located in <style>CSS Code</style>