$（document）.bind（'ready'，function）和$（document）.ready（function（）{}）之间有什么区别

Question

I want to upgrade from requirejs version 2.0.0 to 2.1.5

Here is the code:

define(['jquery', 'test.js'],
    function ($, test) {
    var test = new $.test({
        //options
    });
    ....
});

test.js

(function($) {
    var registerEvents = function() {
        //dosth
    };
    $.test = function(options) {
        $(document).bind('ready', function() {
            registerEvents();
        });
        ...
        return test;
    }

    ...
});

In version 2.0.0, requirejs holds the dom ready event till all resources are downloaded, so it worked correctly https://github.com/jrburke/requirejs/issues/249

When I upgrade to requirejs version 2.1.5, the registerEvents function will never be called.

But supprisingly, if I change:

$(document).bind('ready', function() {
    registerEvents();
});

To:

$(document).ready(function() {
    registerEvents();
});

It worked fine

So my question is: What are the difference between them?

Edit: I am using jQuery v1.7.2

$(document).on('ready', function(){}) not working

Answer 1

The difference is, as the docs say

There is also $(document).on( "ready", handler ), deprecated as of jQuery 1.8. This behaves similarly to the ready method but if the ready event has already fired and you try to .on( "ready" ) the bound handler will not be executed. Ready handlers bound this way are executed after any bound by the other three methods above. [em mine]

.bind and .on behave similarly.

---

This is the only difference between

$( document ).ready( handler )
$().ready( handler ) // (this is not recommended)
$( handler )

and

$( document ).on( "ready", handler )
$( document ).bind( "ready", handler )

that's mentioned in the docs, so I'm guessing is the most likely source of your issue