The command is javascript JavaScript is interpreted by the browser browsers use JavaScript engines to execute the commands each browser differs
depending on the intention of the javascript codes you wish to write. there is much you can do with javascript but the only way to find out what "good Java script codes" are is to explore what you want the Javascript to do on the page.
It is not possible to save and execute Javascript code on Roblox. You can save Javascript code as plain text in script objects, but there is no way to execute the code. Roblox uses a scripting language called LUA in-game which is somewhat similar to JavaScript, but it is not identicle. You can learn about LUA syntax on the Roblox wiki.
As long as there is support for JavaScript in browsers, JavaScript can be called on any O/S, any platform and any machine
No, Java and JavaScript are nothing to do with each other, JavaScript is a form of EMCAScript, not Java. Every modern browser comes with a JavaScript engine that is used to understand JavaScript. so there is no need for it, no.
You need to write the HTML code in the tag format. If you want to write JavaScript put it in <script> tag.
to implement javascript embed the statements between <script> n </script>,,, and include any scripting language. eg:<script LANGUAGE="javascript"> block of codes </script>
You can't, the browser need plain Javascript text to execute it.There are tools for minification (stripping out all unnecessary whitespace, including newlines) and obfuscation (renaming variables to something short and meaningless, like "a" instead of "visitorCount") that makes Javascript harder to read.But you cannot encrypt it. If you have secrets you do not wish others to get access to, you need to take it out of Javascript and put it on the server.
The executable codes which are loaded into RAM from a .class file, which may or may not be execute at the same time i.e may or may not execute later but loaded into RAM.
Javascript is great for handling and manipulating data structures, but it doesn't have any capability to handle graphics - that is where HTML comes in. HTML is a graphics language. So, in general, Javascript that is embedded in HTML handles all the math and data handling for the webpage and uses HTML as a user interface.
That depends. If you just put some javascript code somewhere (like document.write('hello')) it will be executed on page load. However, you'll mostly want to use functions; you then call those functions on certain events (like a button onclick) to execute their code.
A JavaScript tutorial contains instructions that will teach you how to code in JavaScript.