javascript 如何使用 require.js 在 noConflict 的情况下加载 jQuery

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时间:2020-10-27 02:31:07  来源:igfitidea点击:

How use require.js to load jQuery with noConflict

javascriptjqueryrequirejs

提问by mrok

I am trying to load jquery in noConflict mode by using require

我正在尝试使用 require 在 noConflict 模式下加载 jquery

require.config({
    paths: {
        'jquery': 'libs/jquery-req',
        underscore: 'libs/underscore',
        backbone: 'libs/backbone'
    },
    shim: {
        jquery: {
            init: function() {
                console.log('jq init');
                var jq = this.jQuery.noConflict(true);
                jq.support.cors = true;

                return jq;
            },
            exports: '$'
        },
        backbone: {
            deps: ['underscore', 'jquery'],
            init: function() {
                console.log('b init');
            },
            exports: 'Backbone'
        },
        underscore: {
            exports: '_'
        }
    }
});

and use it like that:

并像这样使用它:

define([
    'jquery',
    'underscore',
    'backbone'
], function(jq, _, Backbone) {
    console.log(jq);
    var initialize = function() {
//        Router.initialize();
    };

    return {
        initialize: initialize
    };
});

unfortunately it seems shim.jquery.init function is never called. Can someone try to help me understand why? What is strange when I rename jquery -> jquery-reg then it seems to work, but it requires to change dependency defined in every files.

不幸的是,似乎从未调用过 shim.jquery.init 函数。有人可以尝试帮助我理解为什么吗?当我重命名 jquery -> jquery-reg 时有什么奇怪的,那么它似乎可以工作,但它需要更改每个文件中定义的依赖项。

回答by neverfox

Create the following noconflict.js module:

创建以下 noconflict.js 模块:

define(["jquery"], function($) {
  //drop the `true` if you want jQuery (but not $) to remain global
  return $.noConflict(true); 
});

Then, in your require.config add:

然后,在你的 require.config 添加:

map: {
  "*": {
    "jquery": "noconflict"
  },
  "noconflict": {
    "jquery": "jquery"
  }
}

The noconflict version of jQuery will be handed to all modules (except noconflict). Get rid of the jQuery shim.

jQuery 的 noconflict 版本将交给所有模块(除了 noconflict)。摆脱 jQuery 垫片。

Please note that going the path of keeping jQuery out of the global namespace will prevent you from using any jQuery plugins that are non-AMD without modifying those plugins to be AMD modules. Shim doesn't do anything magical to take advantage of this setup. The same goes for any non-AMD module you might want to shim that depends on something you've made "pure" AMD.

请注意,将 jQuery 排除在全局命名空间之外的路径将阻止您使用任何非 AMD 的 jQuery 插件,而无需将这些插件修改为 AMD 模块。Shim 并没有做任何神奇的事情来利用这个设置。对于任何您可能想要填充的非 AMD 模块也是如此,这取决于您制作的“纯”AMD。

回答by Chris Visser

I'm using this one:

我正在使用这个:

require.config({
    paths: {
        jquery: 'libraries/jquery/jquery.min',
        underscore: 'libraries/underscore.min',
        backbone: 'libraries/backbone.min',
        jquery_ui: 'libraries/jquery/jquery.ui.min',
    },

    shim: {
        'backbone': {
            deps: ['underscore', 'jquery'],
            exports: 'Backbone'
        },
        'underscore': {
            exports: '_'
        },
        'jquery_ui': {
            deps: ['underscore', 'jquery'],
            exports: 'ui'
        }
    }
});

Then in my app i use local scopes to define jquery's instance. In the below case $ is jquery, but it can be something else as well.

然后在我的应用程序中,我使用本地范围来定义 jquery 的实例。在下面的情况下,$ 是 jquery,但它也可以是其他东西。

define([
    'jquery', 
    'backbone'
    ], function ($, Backbone) {

    'use strict';

    var app = Backbone.View.extend({
        el: 'body',

        initialize: function() { },

    });

    return app;

});