Problem of type setting for jquery.post usage

  This article mainly introduces the type setting of Jquery.post usage, which can be consulted by a friend.

When using AJAX to get data, direct Data.foo can be obtained. and the lower version of jquery doesn't work. For example, before 1.4     code as follows: $.post ('/admin/userbookview.do ', {}, function (data) {  Console.info ( Data); });    Print the data information, displaying a JSON-formatted string,:    code as follows: {"Acceptis": null, "entity": null, " Refuseis ': null, ' result ': {' pageSize ':10,  ' resultlist ': [{' Price ': 3, ' wctime ': null, ' note ': ' Integral exception ', ' Cktime ': NULL, "Cuser": "admin",  "CTIME": "2013/12/30 17:03:16", "PHONE": "13111050937", "ADDR": "Test Address", "Cuserid": "1", " Sltime ":null}], " Resultlistarray ": null," titles ": [" ID "," CTIME "," state "" Price "," note "]," totalpage ": 1," TotalSize ":4}, " Source: null, "Storageis": null, "TreeNodes":null}    If no type is set, the default returned data is the text type     When we use data. To try to get the value inside, the return is undefined    Two solutions:    One: Use the Eval function to convert the JSON string to a JSON object   code as follows: Var datas=eval ("(" +data+ ")");    II: Specify type types     code as follows: $.post ('/admin/userbookview.do ', {}, function (data) {  Console.info (data); }, "JSON");    High versions such as 1.8+ do not have this problem, returned as JSON objects