Question

我有一个对象文字，我用它来分组方法。我希望能够轻松地调用一组方法，如下所示：

group =
  methodA: (str) ->
    console.log str + "from method A"

  methodB: (str) ->
    console.log str + "from method B"

for method in group
  method "hello"

# should log to console:
# "hello from method A"
# "hello from method B"

当我尝试这个时它似乎不起作用。我错过了什么/你应该如何循环这样的一组方法呢？

Answer 1

for ... in编译为for循环，假设您循环遍历数组 - 请改为使用for own ... of：

group =
  methodA: (str) ->
    console.log str + "from method A"

  methodB: (str) ->
    console.log str + "from method B"

for own method of group
  group[method] "hello"

CoffeeScript循环方法

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