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What is the difference between jQuery and JavaScript?

Would please tell me the difference between Javascript and Jquery? I know about PHP and MySQL. Now,I want to learn JavaScript.

Answer 1

JQuery is built on top of JavaScript.

JavaScript is pretty powerful, but can be difficult to program. jQuery is sort of a wrapper around JavaScript that makes it easier to program.

For example, instead of JavaScript’s

document.getElementById('myDiv').style.backgroundColor="#FFF"

in jQuery you simply do

$('#myDiv').css('background-color','#FFF');

jQuery also simplifies stuff like XMLHttpRequests and such like. jQuery allows one to focus on the problem and not worry about what goes on in the underlying JavaScript too much.

That’s my half-arsed attempt at explaining things. I’m sure someone can do better!