Question

我正在尝试将Foursquare场地请求的结果添加到KO Observable数组中。我无法解决推送未定义的错误。我假设这是因为帮助程序没有适当地处理数据。

我定义数组并发出请求

storelocations = ko.observableArray([]);

  var fourquarerequest = $.ajax({
        async: true,
        url: 'https://api.foursquare.com/v2/venues/search',
        dataType: 'json',
        data: 'XXXXrequestXXXXX',
    })

然后我尝试遍历结果，使用帮助程序处理它们，并将每个结果添加到Observable Array

            fourquarerequest.done((response) => {

            var self = this
                data = response.response.venues;

                for (var name in data) {
                  shop = new shopdetails(data);
                  self.storelocations.push(shop);
                  console.log(storelocations);
                  }

                //console.log(JSON.stringify(data))
            });

这是处理

  var shopdetails = function (shop) {
    var self = this;
    self.name = data.name;
    self.lat = data.lat;
    self.long = data.long;
    self.URL = data.url;
      if (typeof self.URL === 'undefined') {
          self.URL = "";
        }
  };

Answer 1

It´s a problem of scope. You have defined self inside the foursquare.done function and then written self.storedlocations.push(), even though storedlocations is a global variable.

Change it to storedlocations.push().

对KO Observable Array的Foursquare调用：无法读取未定义的属性'push'

1 个答案: