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Which operating system supports the JavaScript programs to execute?
As long as there is support for JavaScript in browsers, JavaScript can be called on any O/S, any platform and any machine
How do I make a console to display JavaScript like they have on Codecademy?
The first thing you'll need to do is implement a virtual machine to represent the console. Then you need to implement a JavaScript interpreter for your machine. The machine itself needn't be overly complex since it only needs to cater for JavaScript input, thus you could effectively combine the two. However, it's better to keep the interpreter separate. In that way you can evolve your machine to cater for other languages and programming scripts simply by adding new interpreters.
How do you call start method into run method?
In Java a Thread object has two methods that the programmer needs to know: start and run.run is where we put the code that we want to execute when the Thread begins.The start method is what tells the Java Virtual Machine that it should create a new thread and tell it to execute its run method.While you can make a call to thread.run() in order to execute the code in the run method, this will not actually make a new thread in the JVM, but will execute just like any normal method call.
Where do you go to download java script?
You need not download javascript. Any machine where you have a web browser like Internet Explorer or Mozilla would have javascript inbuilt in them. If you view the source (Right click-> View Source : and you can even try on this page itself), you will see tags such as <script type="text/javascript"> These is the embedded javascript code. If you have a source too in the script tag, simply locate the address and type it out in your browser, you will have the entire javascript file.
Why is javascript embedded in HTML?
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.
