如何将Browserify与外部依赖项一起使用？

问题描述

我正在尝试慢慢地将Browserify引入我的网站，但我不想重写所有的js，我不希望重复的jquery实例和我的Browserify构建捆绑的其他库。

I am trying to slowly introduce Browserify into my site, but I don't want to rewrite all the js and I don't want duplicate instances of jquery and other libraries bundled with my Browserify build.

如果我构建我的模块列出jquery作为外部依赖项，那么我如何将它指向我的全局jquery实例？另外目标是消除mylibs全局（例如下面的例子），所以我不想在我的模块中使用它。

If I build my module listing jquery as an external dependency, how do I then point it at my global jquery instance? Also the goal is to eliminate the mylibs global (example below), so I don't want to use it in my module.

这就是我想要的做（psudo-code）。这将是我网站的回购 - 而不是模块的回购。该模块将与Bower一起安装：

This is what I'm trying to do (psudo-code). This would be in my site's repo - not the module's. The module would be installed with Bower:

var mylibs.jQuery = $.noConflict(); // global used by lots of existing code
module.exports = {
    jquery: mylibs.jQuery // can be imported by my module as require('jquery')
};

这就是我想要实现的目标。这可能吗？

Something like that is what I'm trying to achieve. Is this possible?

推荐答案

你可以通过。假设您有一个名为 mymodule.js 的模块，该模块依赖于全局范围内的jQuery，其中包含以下内容：

You can achieve that by using browserify-shim. Assuming that you've got a module named mymodule.js that depends on jQuery in the global scope with the following contents:

var $ = require('jQuery');

console.log(typeof $);

1. 安装browserify-shim：

1. Install browserify-shim:

npm install browserify-shim --save-dev

在package.json文件中，告诉browserify使用browserify-shim作为转换：

In package.json file, tell browserify to use browserify-shim as a transform:

{
    "browserify": {
        "transform": [ "browserify-shim" ]
    }
}

在package.json文件中，告诉browserify-shim将jQuery映射到全局范围内的jQuery：

In package.json file, tell browserify-shim to map jQuery to the jQuery in the global scope:

{
    "browserify-shim": {
        "jQuery": "global:jQuery"
    }
}

运行browserify

Run browserify

browserify mymodule.js > bundle.js

如果你检查bundle.js你会注意到 require（'jQuery'）被替换为（window.jQuery）。

If you examine bundle.js you will notice that require('jQuery') is replaced with (window.jQuery).

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