Say I有一些咖啡用具(有 Underscore.js混合)。
someData =
hello: haha
_(3).times (index) ->
someData["key-#{index}"] = index
<代码>tData的价值为:
hello: haha
key-0: 0
key-1: 1
key-2: 2
如果咖啡包有某种合成糖,允许我写像这样的东西,那是ice的:
someData =
hello: haha
<%
_(3).times (index) ->
%>
key-#{index}: index
产生<代码>,其价值与原数值相同。
是否有这样的咖啡设施?
短期答复:无
更长的答复: 这种合成物将超越咖啡的原意,而咖啡的用意是,一种简单的语言,与 Java文一样,为1:1。 然而,你可以在咖啡厅顶上使用另一种排外语。 事实上,用铁路3.1,它用粗略的直截了当的手法,可以使用鲁比拉的代号来制定咖啡代典,与你的假设一样。
补充 Trevor的回答:法典的产生(a la Lisp)确实是强大的,但你也可以建立一些基本抽象的结构。 例如(使用:
data = _(
hello: haha
).merge(_([0..2]).mash (x) -> ["key-" + x, x])
简短回答: 是的,类型。
Slightly less short answer: You can do what the OP is after in fine style, since coffeescript is written in coffeescript (which is written in coffeescript ;). Sth like ERB templates are probably a better choice if your use-case is very simple, but there s nothing like programmatically manipulating AST structures for really powerful & reusable code-generation.
在这方面,咖啡包显示,几乎是象。 (ssps的喜悦)但不是真的。
Here s an example: http://blog.davidpadbury.com/2010/12/09/making-macros-in-coffeescript/
nostalgic musing follows
"javascript" was inspired by http://en.wikipedia.org/wiki/Scheme_(programming_language) ... before it was called javascript ... and so coffeescript is kinda bringing JS back to its roots, eliding the marketing jibberish in its syntax, which was shoehorned in because of ill-conceived micromanagement on the part of Sun & Netscape executives.
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