CoffeeScript：coffee -w name-of-file.coffee抱怨：“window is not defined” [英] CoffeeScript: coffee -w name-of-file.coffee complains: “window is not defined”

问题描述

在CofeeScript中，我通过这样做创建一个全局对象：

In CofeeScript I am creating a global object by doing this:

window.App = 
  init : ->
    ...

运行 coffee -w app.coffee 抱怨窗口未定义，不会重写 app.js 文件。

Running coffee -w app.coffee complains window is not defined and doesn't rewrite the app.js file.

但是，运行 coffee -c app.coffee 编译没有问题。
如何获得咖啡-w 接受全局窗口？

However, running coffee -c app.coffee compiles without a problem. How can I get coffee -w to accept global window?

CoffeeScript版本是1.1.1（来自 coffee -v ）

CoffeeScript version is 1.1.1 (from coffee -v)

谢谢！ / p>

Thanks!

推荐答案

如果你想观看一个文件并编译它，你需要做：

If you want to watch a file and have it compiled you need to do:

coffee -wc file.coffee

只使用 -w 标志导致咖啡只是在脚本运行时运行脚本，如同运行：

Using only the -w flag causes coffee to just run the script when it changes, as if you had run:

coffee file.coffee

关于窗口没有定义错误，如果你想让你的脚本在浏览器和node.js中运行，那么你可以这样做：

In regards to the window is not defined error, if you want to make your script runnable both in a browser and in node.js, then you can do this:

root = exports ? this

class Thing
  constructor: (@name) ->
  whoAreYou: ->
    alert @name

root.Thing = Thing

有用的标志组合是 -wp ，它只是管道编译javascript标准输出每次你对文件进行更改。

Another useful flag combination is -wp which just pipes the compile javascript to standard out each time you make a change to the file.

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