如何將GorillaScript翻譯成LiveScript？

Question

我有這樣的GorillaScript代碼扁平化陣列：

Array::compact := # 
    for filter value in this 
    value and (typeof value.isempty != 'function' or not value.isempty()) and (typeof value != 'object' or Object.keys(value).length != 0) 

GorillaScript是有點死了。有人可以幫我翻譯成LiveScript嗎？我對LiveScript相當陌生。

Answer 1

字面翻譯看起來像這樣。

Array.prototype.compact = -> 
    [v for v in @ when v and (typeof v.isempty isnt \function or not v.isempty!) and (typeof v isnt \object or Object.keys value .length > 0)] 

更地道的例子可能是：

is-empty = -> 
    | not it => false 
    | typeof it.isempty isnt \function or not it.isempty! => true 
    | typeof it isnt \object or not Object.keys it .length > 0 => true 
    | otherwise => it 

Array.prototype.compact = -> [x for x in @ when not is-empty x] 

當心，因爲這是我的頭我的任何的LiveScript有點生鏽的頂部做了，但這裏的總體思路是好的。