What is a java script.

Question

java is a programming language. do not use compile program.

Answer 1

JavaScript is an interpreted programming language. (Like Python or PHP, but unlike C or C++). It is usually runs in a web browser on the client side, although there are versions that run on the server side of some servers.

JavaScript is interpreted by the user's web browser. JavaScript is usually used to improve the interactivity of web pages. Running in the browser it has acces to the page's Document Oject Model (DOM) and may modify the HTML and CSS of the page. The game 2048 is an excellent example of what is possible with JavaScript. Image sliders and input validation are usually implemented in JavaScript.

Running on the client side means that the server should never trust data from a JavaScript. Only a minimum of skill is needed to modify the script on the client side to attempt injection attacks against a website.

Other than being C derivatives and object oriented JavaScript has little to do with Java. Java has its roots in what was then Sun Computers. JavaScript came out of what was then Netscape Communication. The name arose from a marketing agreement between the two companies.