Coffeescript 查询对象数组

有人知道如何在coffeescript中查询哈希数组吗

例如，我有一个哈希数组，每个哈希都有一个“名称”和“设置”：

我想在这个数组中找到散列“name”为“x_axis_label”的元素

我怎样才能轻松地用咖啡脚本做到这一点

---

我需要为对象（键，对象）函数中的键提供某种

值，\u并计算出它是否是词典的一部分…
我只是很快就搞定了：

data = [{"name":"color","setting":"red"},{"name":"scale_min","setting":"15"},{"name":"scale_type","setting":"linear"},{"name":"x_axis_label","setting":"Weeks"}]

find = (i for i in data when i.name is 'x_axis_label')[0]

alert(find.setting)

如果您碰巧使用的是下划线.js，您可以使用：

如果您要重复执行此操作，总是寻找名称等于某个值的对象，那么最好将其从一个映射数组转换为一个键为名称的映射

data = [
  {"name":"color","setting":"red"}
  {"name":"scale_min","setting":"15"}
  {"name":"scale_type","setting":"linear"}
  {"name":"x_axis_label","setting":"Weeks"}
]

myMap = {}
for row in data
  myMap[row.name] = row.setting

alert(myMap['x_axis_label'])

与“惯用”解决方案相比，我总是更喜欢“多语言”解决方案。因此，您可以使用
Array.filter

data = [{"name":"color","setting":"red"},{"name":"scale_min","setting":"15"},{"name":"scale_type","setting":"linear"},{"name":"x_axis_label","setting":"Weeks"}]
find = (data.filter (i) -> i.name is 'x_axis_label')[0]
alert find.setting

这太棒了，这也是为什么我真的开始喜欢咖啡脚本的原因
data = [
  {"name":"color","setting":"red"}
  {"name":"scale_min","setting":"15"}
  {"name":"scale_type","setting":"linear"}
  {"name":"x_axis_label","setting":"Weeks"}
]

myMap = {}
for row in data
  myMap[row.name] = row.setting

alert(myMap['x_axis_label'])

data = [{"name":"color","setting":"red"},{"name":"scale_min","setting":"15"},{"name":"scale_type","setting":"linear"},{"name":"x_axis_label","setting":"Weeks"}]
find = (data.filter (i) -> i.name is 'x_axis_label')[0]
alert find.setting