javascript - 使用 JavaScript 格式化 JSON 日期

Question

我正在从我的 Web 服务方法返回一个 JSON 对象。该对象中有一些日期，因此生成的 JSON 如下所示:

{"d": [
    {"PeriodID":8,"Period":"072011","BeginDate":"\/Date(1294268400000)\/"},
    {"PeriodID":2,"Period":"052011","BeginDate":"\/Date(1293836400000)\/"}
]}

我正在尝试将此数据转换为字符串以添加为 <option> HTML 选择中的元素。这是我的代码:

var rtypes = data.d;
$.each(rtypes, function (key, value) {
    var text = value.Period + " - " + "from " + eval(value.BeginDate.slice(1, -1));
    var option = $("<option></option>").attr("value", value.PeriodID).text(text);
    $('#rpCombo').append(option);
});

现在问题:

1. 我可以格式化 Period 中包含的日期吗？字段(例如 072011)作为“2011 年 7 月”？
2. 如何转换 eval(value.BeginDate.slice(1, -1)) 的结果例如，将“7 月 14 日星期三......”转换为“14/07/2011”？

感谢您的帮助

Answer 1

https://developer.mozilla.org/en/JavaScript/Reference/Global_Objects/Date/parse

例如

// create 1 of June 2011 from Jun 2011
var period = new Date(Date.parse("1 "+period)); 

这就是我认为你想要的

<script>

var months = ["Jan","Feb","Mar","Apr","Jun","Jul","Aug","Sep","Oct","Nov","Dec"]
var result = {"d": [
    {"PeriodID":8,"Period":"072011","BeginDate":1294268400000},
    {"PeriodID":2,"Period":"052011","BeginDate":1293836400000}
]}


var aPeriod, period, periodMM, periodYYYY, periodText, beginDate, beginMM, beginDD;
for (var i=0,n=result.d.length;i<n;i++) {
  aPeriod = result.d[i];

//  period = new Date(aPeriod.Period.slice(2),aPeriod.Period.slice(0,2)-1,1,0,0,0);
//  periodText = months[period.getMonth()]+" "+period.getFullYear();
  periodMM = parseInt(aPeriod.Period.slice(0,2),10);
  periodYYYY = aPeriod.Period.slice(2);
  periodText = months[periodMM]+" "+periodYYYY;
  beginDate = new Date(aPeriod.BeginDate);      
  beginDD = beginDate.getDate();
  if (beginDD<10) beginDD="0"+beginDD;
  beginMM = beginDate.getMonth()+1;
  if (beginMM<10) beginMM="0"+beginMM;
  periodText += " "+beginDD+"/"+beginMM+"/"+beginDate.getFullYear();
  alert(periodText)     
}

</script>