[{
"url": "http://img06.tooopen.com/images/20160921/tooopen_sy_179583447187.jpg",
"media": [5, 3, 4, 0, 1],
"notesCount": 100,
"unProcessedCount": 100,
"area": {
  "customerName": "张大民",
  "appellation": "先生",
  "tel": 15833150000
},
"modifytime": "12:12 2018-3-28"
  }, {
"url": "http://img.1ppt.com/uploads/allimg/1605/4_160504095943_1.jpg",
"notesCount": 100,
"unProcessedCount": 100,
"area": {
  "estate": "德源里",
  "tel": 15833150000
},
"modifytime": "12:12 2018-3-28"
  }]
  

      比如这样一个model

       for (var i = 0; i < arr.length; i++) {
       if (arr[i].indexOf("张大民") !== -1) {
               查询出带有这个字符的对象怎么不行
            }
        }