Question

I m 试图将JSON(从Candards s json_encode)装入Abone JS藏书。我将问题简化为:

var myJSON =  [{ "id":"1","name":"some name","description":"hmmm"}] ;

var myCollection = new MyCollection(myJSON, { view: this });

而且:

MyObject = Backbone.Model.extend({

  id: null,
  name: null,
  description: null
});

MyCollection = Backbone.Collection.extend({ 
model: MyObject,
initialize: function (models,options) { }
});

错误:

Uncaught Type错误:Cannot use in operator to search for id in

类似问题: Backbone: fetch Collection from服务器

我的“智者”当然似乎以适当的形式出现,我是否失踪了明显的东西? 我曾尝试用简单称道:“1”而不是“id”,结果相同。

Answer 1

Your JSON is still in string format. Pass it to JSON.parse before assigning it:

var myJSON = JSON.parse( [{"id":1,"name":"some name","description":"hmmm"}] );

Answer 2

页: 1

MyObject = Backbone.Model.extend({
  defaults: {
    id: null,
    name: null,
    description: null
  }
});

见。

Answer 3

因此,可能完全没有问题,但问题似乎只是阵列上的单一引语。这就是:

var myJSON =  [{ "id":"1","name":"some name","description":"hmmm"}] ;

should be:

var myJSON = [{ "id":"1","name":"some name","description":"hmmm"}];

Php, afik, doesn t add the single quotes, so it should be as simple as changing a line that says:

$my_js = "var myJSON =  " . json_encode($my_array_to_send)) . " ;";

:

$my_js = "var myJSON = " . json_encode($my_array_to_send)) . ";  ";

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