For the function (function($){})(), I've seen it with the word jQuery in it, why is that?

Question

For the function (function($){})(), I\'ve seen it with the word jQuery in it, why is that?

I have read this page Javascript: why does jQuery do this: (function(){ ..

Answer 1

Is a simple function invocation, the jQuery object is sent as an argument to the anonymous function, e.g.:

(function (foo) {
  alert(foo); // alerts "hello"
})("hello");

It's a common pattern to define plugins, basically permits you to reference the jQuery object as $ in the scope of the anonymous function, even if jQuery is running in noConflict mode.