Name: What is JavaScript?
Uploaded: 2017-04-26T15:52:18.000Z
Duration: 2 min 17 s
Description: Thousands of YouTube videos with English-Chinese subtitles! Now you can learn to understand native speakers, expand your vocabulary, and improve your pronunciation...

Once upon a time there was internet. You know, a bunch of computers all connected

by wires. One person on a computer can read documents from another person's computer using

Adverbs of manner

a language called HTML. Each computer's web browser can properly display these

documents. Add CSS to the mix and you've got a beautifully-styled web page.

It is important to note that neither HTML nor CSS are programming languages. back in

Back in 1995 a few people at Netscape started to wonder, "What if there was a way to write

browser and create an even better user experience.

You're probably familiar with Twitter. They use a lot of JavaScript on their

Such as opening up a tweet in a bigger window for instance

Also, any of the actions below a tweet will trigger some JavaScript to be run.

If I click the star to favorite a tweet JavaScript will tell the server,

If I click on reply you can see the JavaScript

All of this behavior is made possible by JavaScript

It's worth mentioning that Java is not JavaScript.

They are two separate programming languages.

JavaScript is not just for programming in the browser, but on servers, game programming,

Yeah, robots! We're only limited by our imaginations.

To get started — if you're new to these parts —

please take a moment to play through our free five minute tutorial on JavaScript.com.

Or you can head over to our getting started page where we've curated a list of free

On our news page you can submit your own JavaScript news, read what other people

subscribe to our weekly newsletter or listen to our podcast.

Welcome to the wonderful world of JavaScript.

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What is JavaScript?

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