JavaScript:如何从JSON数据中获取特定值

时间:2017-04-11 12:18:46

标签: javascript angularjs json model-view-controller

我有以下代码,我从JSON文件中获取数据,我将数据存储在$scope.users变量中,但我只想获取用户名值,我该怎么办呢?

LoginCtrl.js

'use strict';
angular.module('User').controller('LoginCtrl', ['$scope','$state', "SettingService","UserService", function($scope,$state, SettingService,UserService) {

$scope.users = [];

  UserService.getLoginInfo().then(function(response){
    $scope.users = response.data.data["username"];
  }, function(error){

  })

    var vm = this;

    vm.doLogin = function(){
        var username = document.forms["loginForm"]["email"].value;
var password = document.forms["loginForm"]["password"].value;
if(username == "admin@gmail.com" )
{
    if(password == "admin")
    {
        $state.go('app.home');
    }
}
    };
}]);

User.json

{
    "result": "success",
    "data": [
        { "id": 1, "username":"admin@gmail.com", "password":"admin"}


    ]
}

1 个答案:

答案 0 :(得分:2)

您可以将该JSON值的值作为

response.data.data[0]["username"]

如果你想从数组中获取所有用户名,那么你可以这样做:

var arr = response.data.map(function(a, b){
   return a.username;
});

arr将包含所有用户名详细信息

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