我有一个变量如下:
var dataset = {
"towns": [
["Aladağ", "Adana", [35.4,37.5], [0]],
["Ceyhan", "Adana", [35.8,37], [0]],
["Feke", "Adana", [35.9,37.8], [0]]
]
};
变量中有很多城镇数据。我怎样才能高效地从数据中提取第三个元素的第一个元素?即下面的
...
应该是什么?var myArray = ...
//myArray == [35.4,35.8,35.9] for the given data
如果我想把两个值都存储在数组中,应该怎么做呢?
var myArray = ...
//myArray == [[35.4,37.5], [35.8,37], [35.9,37.8]] for the given data
我对Javascript非常陌生。希望有一种方法可以不使用for循环。