angular笔记

angular方法

1. bind

绑定对象，作为函数的上下文

 <script>
          var self={name:'张三'};
              var f=angular.bind(self,function(age){
                        $scope.info=this.name+' is '+age;
                        console.log($scope.info);
              });
              f(30);//张三 is 30

              var f=angular.bind(self,function(age){
                  $scope.info=this.name+' is '+age;
                  console.log($scope.info);
              },10);
              f();//张三 is 10
    </script>

2. forEach

对象或数组的迭代函数

            var json = {"name":"hello","age":"20","sex":'男'};
              angular.forEach(json,function(val,key){
                  console.log(val);//hello  20  男
                  console.log(key);//name age sex
              });

              var results=[];
              angular.forEach(json,function(val,key){
                  this.push(key+'--'+val);
              },results);
              console.log(results);// ["name--hello", "age--20", "sex--男"]

3. copy

数组或对象深度拷贝

              $scope.a={name:'张三'};
              $scope.b={age:10};
              $scope.c=angular.copy($scope.a,$scope.b);

              console.log($scope.a);//{name:'张三'}
              console.log($scope.b);//{name:'张三'}

4. formJson

反序列化，将字符串转换成json对象

              var json = '{"name":"hello","age":"20"}';
              console.log(json);//{"name":"hello","age":"20"}  字符串

              $scope.json=angular.fromJson(json);
              console.log($scope.json);//对象

5. toJson

序列化，将json对象转换成字符串

              var json = {"name":"hello","age":"20"};
              console.log(json);//json对象

              $scope.json=angular.toJson(json);
              console.log($scope.json);//json字符串

6. extend

继承

              $scope.a={name:'张三'};
              $scope.b={age:10};

              $scope.c=angular.extend($scope.b,$scope.a);
              console.log($scope.b);//{age: 10, name: "张三"}

7. 比较