Question

handlebarsjs是否与JSONObject一起使用？我有一个数组的对象来自php中的db，它总是一个std对象。

PHP中，

$items = std object

echo json_encode($items);

结果，

{"items":{"0":{"pub_name":"Main","system_id":"50","make_accessible":"0","count":"19","router":"#!page\/main\/list\/"},"1":{"pub_name":"estate","system_id":"122","make_accessible":"0","count":"8","router":null},"2":{"pub_name":"wines","system_id":"125","make_accessible":"0","count":"5","router":null},"3":{"pub_name":"visits","system_id":"128","make_accessible":"0","count":"4","router":null},"4":{"pub_name":"community","system_id":"131","make_accessible":"0","count":"8","router":null},"5":{"pub_name":"events","system_id":"137","make_accessible":"0","count":"8","router":null},"6":{"pub_name":"Contact","system_id":"140","make_accessible":"0","count":"3","router":null},"7":{"pub_name":"Newsletter","system_id":"143","make_accessible":"0","count":"2","router":null},"8":{"pub_name":"gallery","system_id":"146","make_accessible":"0","count":"2","router":null},"9":{"pub_name":"Discover Our Wines","system_id":"163","make_accessible":"0","count":"2","router":null}},"total":10}

jquery的，

$.ajax({
  type:       "GET",
  dataType:   "json",
  url: "server.php"

}).done(function(returndata) {

$(this).html(Handlebars.getTemplate('page')({pages: returndata}));

...

returndata，

Object { items={...}, total=10}

把手的模板，

{{ pages.items.length }}

结果，

empty

我应该怎么做，因此把手模板可以读取JSONObjects？

Answer 1

对象没有长度属性，因此Handlebars无需渲染。

http://jsfiddle.net/WARUa/：

var myObject = {items: {0: {k: 1}, 1: {k: 2}}};

var myArray = [{k: 1}, {k: 2}];

alert(myObject.items.length); // undefined
alert(myArray.length); // 2

我建议你调整返回JSON的代码，这样items就是一个数组。

或者，你需要这样的东西：Length of a JavaScript object

把手：阅读JSONObjects？

1 个答案: