Javascript is the most popular language to add behaviour to web pages. Javascript adds dynamism to web pages which has become so popular these days. Add AJAX to the recipe and we have a solid foundation to add behavior. As we begin to explore this exciting scripting language let me tell you what it means to be a scripting language.
Javascript is an interpreted language:
People from a technical background might easily understand this; but for newbies it might not be apparent. Classical programming languages like C,C++,COBOL are compiled by the compiler first and on compilation we get the compiled object file. So each time we run the program the code is not executed each time, rather the object file is referenced. On the other hand an interpreted language is read line by line each time the program is executed.
Javascript is a programming language:
Contrary to popular perception, Javascript is not just a scripting language. Its a lot more than that. It has all the qualities that a programming language should have. In addition to most of the program constructs available in language like C, it also has strong Object Oriented Concepts making it a powerful language indeed.
Javascript != Java :
People always wonder whether javascript and java have anything in common. The truth is Javascript was names LiveScript initially by Netscape. But with the success of Java it was called JavaScript.
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