CoffeeScript:coffee -w-file-of.file.coffee提示: “window is not defined”

Question

在CofeeScript中，我通过执行以下操作创建一个全局对象:

window.App = 
  init : ->
    ...

运行coffee -w app.coffee会提示window is not defined，并且不会重写app.js文件。

但是，运行coffee -c app.coffee可以毫无问题地进行编译。
如何获得coffee -w接受全局window？

CoffeeScript版本为1.1.1(来自coffee -v)

谢谢!

Answer 1

如果要观看文件并进行编译，则需要执行以下操作:

coffee -wc file.coffee

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

coffee file.coffee

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

另一个有用的标志组合是-wp，它在每次更改文件时仅通过管道将编译javascript标准化。