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JavaScript Tutorial
JavaScript is THE scripting language of the Web.

JavaScript is used in billions of Web pages to add functionality, validate forms, communicate with the server, and much more.

JavaScript is easy to learn. You will enjoy it.


JavaScript

JavaScript is THE scripting language of the Web.

JavaScript is used in billions of Web pages to add functionality, validate forms, 

JavaScript is THE scripting language of the Web.

JavaScript is used in billions of Web pages to add functionality, validate forms, communicate with the server, and much more.

JavaScript is easy to learn. You will enjoy it.

Try it Yourself Examples in Each Chapter

This tutorial contains hundreds of "Try it yourself" examples.

With "Try it yourself", you can edit JavaScript code online, and click on a button to view the result:

Example

My First JavaScript Example

This is a paragraph.

 
Try it yourself »

Use the "Try it yourself" examples on every page !!!

Change and experiment as much as possible with the code, and learn how everything works !!!


Who Should Read this Tutorial?

1. This tutorial is for you who want to learn JavaScript:

What JavaScript is, and how to make it work with HTML and CSS.

2. This tutorial is also for you who have used JavaScript before:

Bring your knowledge up to date. A lot has changed in JavaScript development in the last years.


What You Should Already Know

Before you continue, you should have a basic understanding of the following:

  • HTML and CSS

If you want to study these subjects first, find the tutorials on our Home page.


JavaScript Examples

Learn JavaScript by hundreds of examples!

With "Try it yourself", you can edit the source code and click on a button to view the result.


JavaScript Quiz Test

Test your JavaScript skills at W3Schools!

Start JavaScript Quiz! 


JavaScript References

At W3Schools you will find complete references of all JavaScript objects, Browser objects, and HTML DOM objects.

The references contains examples for every object, property, and method.



Parameters


Returns/Result


Examples


Reference

See Also


On the forum about JavaScript Tutorial

[@EOF@]...

Product: . Written by alembagheri tahmas 07/12/13 at 13:37:32

Hi there,I am trying to use an external MySQL DB in dataease. I have successfully create the ODBC link and added the DB to dataease. I can also access the DB from dataease. Now, just for testing purposes, I am trying to create a simple report b...

Product: DataEase for Windows 7.x. Written by George Washington 11/04/14 at 08:26:17

no se pude exportar ahora archivos a pdf, ni a excel o otros cosa mala. en verdad creo que hace faltaen las versiones anteriores me funcionaba mas o menos bien. le hace falta a los aplicativos que se desarrollan en Dataeasegr...

Product: DataEase 8 Reporter. Written by eduardo paez 02/05/14 at 14:40:11

Thanks. Anyway I'm trying to use this fuction but it seems to me that it doesn't work on 8.2. I tried also in a DQL.There's something wrong?<img src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAA9IAAAJ3CAYAAAB4NWk3AAAAAXNSR0IArs4...

Product: . Written by Marco Marchesi 15/02/16 at 14:50:46

[@EOF@]...

Product: Dataease [{8}]FIVE. Written by Chamil Rajindra 21/02/19 at 10:17:46

Thanks for the very good explanation!AS...

Product: . Written by afonso santos 28/10/19 at 00:50:14

I am pleased to see that the migration from Dos 4.53 is then sa 5.5 works. A really useful thing would be a compiler of SQL languages. Will you get there?Original Text:Mi compiaccio a vedere che la migrazione da Dos 4.53 è poi sa 5.5 funzio...

Product: . Written by Grossi Gioacchino 18/11/19 at 14:33:44

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