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What is JavaScript ?

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Josh’s Answer

Javascript is a programming language.

It's most famous for being the language that powers your web browser. (There's some javascript code running in the web page you're reading right now!) But it's also a popular choice for writing server programs as well.

Thank you comment icon I thank you very much for your feedback you are very knowledgeable :) Dayalis
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Judy’s Answer

JavaScript at its core is pretty simple. I found this definition for you on the web. "JavaScript is the programming language of HTML and the Web. JavaScript is easy to learn. This tutorial will teach you JavaScript from basic to advanced. "

I am not a coder, but work in Network Security and sometimes have to edit HTML code for various website and portal where I design and publish content.

Judy recommends the following next steps:

I found this website that you might want to check out. I think it simplifies things that may be helpful for you. w3schools.com -- https://www.w3schools.com/js/
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Adrian’s Answer

It is a programming language - a great one at that! Definitely look it up on Google and find some great books about it too - there's a wealth of knowledge out there!
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BHUSHAN’s Answer

JavaScript is what is called a Client-side Scripting Language. That means that it is a computer programming language that runs inside an Internet browser (a browser is also known as a Web client because it connects to a Web server to download pages).

Javascript was developed by Brendan Eich for Netscape Navigator in 1995. JavaScript was specifically developed to be a language embedded into a web browser and automate things on the client side, such as, validate form input before submitting to the server or manipulate the document object model (DOM). In the beginning, that was all it was meant to do.

Then came AJAX (Asynchronous JavaScript and XML). AJAX enabled the browser to talk directly to an executable on the server, fetch an answer and populate the DOM so that new content could be pumped in/removed from the page. This made JavaScript an essential component the browser.

Then came Google's v8 Javascript engine and node.js and it really became a lot more interesting. You could now write server side code in JavaScript.

As far as I know, JavaScript is the only language that can run both on the server and the browser. Firefox OS has all apps written JavaScript. You can write JavaScript apps for Android and iOS.

JavaScript is an implementation of ECMAScript standard. It is currently being improved and is expected to become even more versatile.
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Oliver’s Answer

To add to Josh's answer, JavaScript (or JS) is used in web pages and is generally used to help make web pages 'intelligent' and interactive because other programming languages cannot do what is needed or it is just easier to do in JavaScript. JavaScript is always used alongside other languages like HTML and CSS to create a web page.

When I say more intelligent I mean that JavaScript allows you to do things with data (like add 3 days to the current date and display this on the webpage or order data in a table in alphabetical order and show you this on the page or check to see if something is true like is it currently morning or afternoon and then show you a different message on the webpage depending on which is it etc...). JavaScript can also be used to respond to an event too on the screen such as if a user clicks on a button then do something in response, like refresh the screen. This is easily achieved in JavaScript, but you cannot do these with HTML and CSS for example.

This is a great tutorial with JavaScript and it allows you to play with coding in JS online: https://www.w3schools.com/js/default.asp

Oliver recommends the following next steps:

Try out W3Schools online to learn and practice online coding with JavaScript (Free Resource) https://www.w3schools.com/js/default.asp
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PRASANJIT’s Answer

JavaScript is used by programmers across the world to create dynamic and interactive web content like applications and browsers. JavaScript is so popular that it's the most used programming language in the world, used as a client-side programming language by 97.0% of all websites.
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