RequireJS模块的依赖性不被评估 [英] RequireJS module's dependencies not being evaluated

问题描述

我有以下（非常简单）模块定义，在CoffeeScript的：

I have the following (extremely simple) module definition, in CoffeeScript:

# backbone/routers/appointments_router.js.coffee
define ["app", "underscore", "backbone"], (App, _, Backbone) ->
  console.log(Backbone)

和这里是我的配置和东西：

And here's my config and stuff:

# application.js.coffee
requirejs.config
  paths:
    underscore: "lodash.min"
    backbone: "backbone"
    appointmentsRouter: "backbone/routers/appointments_router"
    "backbone-relational": "backbone-relational"

requirejs ["app", "underscore", "backbone", "appointmentsRouter"], (App, _, Backbone, AppointmentsRouter) ->

下面是发生了什么：当我加载我的网页，我得到未定义在控制台中，即使骨干被列为依赖关系。什么是更令人费解的是，如果我键入骨干进入控制台，骨干的是的定义。

Here's what's happening: when I load my page, I get undefined in the console, even though Backbone is listed as a dependency. What's even more puzzling is that if I type Backbone into the console, Backbone is defined.

怎么可能是骨干最终得到评估，但我的 appointments_router.js.coffee 不知道骨干？

How could it be that Backbone is ultimately getting evaluated, but my appointments_router.js.coffee doesn't know about Backbone?

推荐答案

下划线或骨干不兼容AMD，所以定义路径是不够的。幸运的是Require.js提供 垫片 - 功能作为一个答案。

Underscore or Backbone aren't AMD compliant, so defining the path isn't enough. Luckily Require.js offers the shim -functionality as an answer to this.

所以你必须添加这样的事情

So you'll have to add something like this

requirejs.config( // shouldn't this be just require?
  paths: ..., // don't change these
  shim: {
    "underscore": {
      exports: "_" // define the export
    },
    "backbone": {
      deps: ["underscore"], // define dependencies for backbone
      exports: "Backbone"
    }
  }
);

希望这有助于！

这篇关于RequireJS模块的依赖性不被评估的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！