我有一个带有几个键值对的对象数组,我需要根据’updated_at’对它们进行排序:
[ { "updated_at" : "2012-01-01T06:25:24Z", "foo" : "bar" }, { "updated_at" : "2012-01-09T11:25:13Z", "foo" : "bar" }, { "updated_at" : "2012-01-05T04:13:24Z", "foo" : "bar" } ]
这样做最有效的方法是什么?
您可以使用Array.sort。
Array.sort
这是一个例子:
var arr = [{ "updated_at": "2012-01-01T06:25:24Z", "foo": "bar" }, { "updated_at": "2012-01-09T11:25:13Z", "foo": "bar" }, { "updated_at": "2012-01-05T04:13:24Z", "foo": "bar" } ] arr.sort(function(a, b) { var keyA = new Date(a.updated_at), keyB = new Date(b.updated_at); // Compare the 2 dates if (keyA < keyB) return -1; if (keyA > keyB) return 1; return 0; }); console.log(arr);