Help for JavaScript!!!?

I have a question around the JavaScript.I keep asking what is really a class archive, and I would prefer to allow it to needlessly run that JavaScript.So can somebody support me If you know what will it be, please inform me.And assistance me to operate JavaScript.

A category file is merely that a new file that contains a elegance.Some classes may be very significant.A very good example may be the jQuery elegance.To generate one just make a file point out a function(remember that will classes are usually function with JavaScript) place in properties in addition to methods.You can then load that script dynamically or having a script tag also , you gain access to your elegance.