JavaScript端的JSON日期轉換

var d = new Date();

//預設Date會轉為yyyy-MM-ddTHH:mm:ss.fffZ ISO 8601格式

var t = JSON.stringify(d);

console.log(t);

//parse時，ISO 8601格式並不會被轉成Date，而是被視為字串

console.log(typeof (JSON.parse(t)));

//透過reviver提供ISO 8601字串轉Data的功能

//REF: http://msdn.microsoft.com/zh-tw/library/ie/cc836466(v=vs.94).aspx

var dateReviver = function (key, value) {

    var a;

    if (typeof value === 'string') {

        a = /^(\d{4})-(\d{2})-(\d{2})T(\d{2}):(\d{2}):(\d{2}(?:\.\d*)?)Z$/.exec(value);

        if (a) {

            return new Date(Date.UTC(+a[1], +a[2] - 1, +a[3], +a[4], +a[5], +a[6]));

        }

    }

    return value;

};

var result = JSON.parse(t, dateReviver);

console.log("type=" + typeof (result) + ", value=" + result.toString());

//同場加映: 排除特定屬性及修改屬性值

var obj = {

    boo: "BOO",

    foo: "FOO",

    blah: "BLAH"

};

t = JSON.stringify(obj);

console.log(t);

//客製Reviver，忽略boo，並在foo的內容後方加上"*"

var myReviver = function (key, value) {

    //傳回null或undefined會刪除該屬性

    if (key == "boo") return undefined;

    if (key == "foo") return value + "*";

    return value;

};

result = JSON.parse(t, myReviver);

console.log(JSON.stringify(result));