[转]AngularJS 作用域数据绑定

最新推荐文章于 2019-11-27 13:38:56 发布

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最新推荐文章于 2019-11-27 13:38:56 发布

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分类专栏： blog 文章标签： angularjs

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在imooc上看angularjs指令4,搜索了转载下

基于字符串的绑定：使用@操作符，双引号内的内容当做字符串进行绑定。
基于变量的绑定：使用=操作符，绑定的内容是个变量,双向数据绑定
基于方法的绑定：使用&操作符，绑定的内容是个方法。
@
=
&

上图代码:

<!doctype html>
<html ng-app="myApp">
    <head>
         <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
         <script src="http://apps.bdimg.com/libs/angular.js/1.2.16/angular.min.js"></script>
    </head>
    <body>

        <div ng-controller="myAppCtrl">
            <xingoo say="test string"></xingoo>
            <xingoo say="{{str2}}"></xingoo>
            <xingoo say="test()"></xingoo>
        </div>

        <script type="text/javascript">
            var myAppModule = angular.module("myApp",[]);

            myAppModule.controller("myAppCtrl",['$scope',function($scope){
                $scope.str1 = "hello";
                $scope.str2 = "world";
                $scope.str3 = "angular";
            }]);

            myAppModule.directive("xingoo",function(){
                return {
                    restrict:'AE',
                    scope:{
                        say:'@'
                    },
                    template:"<div>{{say}}</div><br>",
                    repalce:true
                }
            })
        </script>
    </body>
</html>

<!doctype html>
<html ng-app="myApp">
    <head>
         <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
         <script src="http://apps.bdimg.com/libs/angular.js/1.2.16/angular.min.js"></script>
    </head>
    <body>

        <div ng-controller="myAppCtrl">
            ctrl:<input type="text" ng-model="testname"><br>
            directive:<xingoo name="testname"></xingoo>
        </div>

        <script type="text/javascript">
            var myAppModule = angular.module("myApp",[]);

            myAppModule.controller("myAppCtrl",['$scope',function($scope){
                $scope.testname="my name is xingoo";
            }]);

            myAppModule.directive("xingoo",function(){
                return {
                    restrict:'AE',
                    scope:{
                        name:'='
                    },
                    template:'<input type="text" ng-model="name">',
                    repalce:true
                }
            })
        </script>
    </body>
</html>

<!doctype html>
<html ng-app="myApp">
    <head>
         <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
         <script src="http://apps.bdimg.com/libs/angular.js/1.2.16/angular.min.js"></script>
    </head>
    <body>

        <div ng-controller="myAppCtrl">
            <xingoo say="sayHello(name)"></xingoo>
            <xingoo say="sayNo(name)"></xingoo>
            <xingoo say="sayYes(name)"></xingoo>
        </div>

        <script type="text/javascript">
            var myAppModule = angular.module("myApp",[]);

            myAppModule.controller("myAppCtrl",['$scope',function($scope){
                $scope.sayHello = function(name){
                    console.log("hello !"+ name);
                };
                $scope.sayNo = function(name){
                    console.log("no !"+ name);
                };
                $scope.sayYes = function(name){
                    console.log("yes !"+ name);
                };
            }]);

            myAppModule.directive("xingoo",function(){
                return {
                    restrict:'AE',
                    scope:{
                        say:'&'
                    },
                    template:'<input type="text" ng-model="username"/><br>'+
                        '<button ng-click="say({name:username})">click</button><br>',
                    repalce:true
                }
            })
        </script>
    </body>
</html>