Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

directive组件作用域 #14

Open
Wscats opened this issue Aug 17, 2016 · 2 comments
Open

directive组件作用域 #14

Wscats opened this issue Aug 17, 2016 · 2 comments

Comments

@Wscats
Copy link
Owner

Wscats commented Aug 17, 2016

  • false,继承父作用域(默认值),父能影响子,子也能影响父;
  • true,继承父作用域,并且创建自己的作用域(子作用域),父能影响子,子不能影响父;
  • {},创建一个全新的隔离作用域,父子互不影响;
    这里写图片描述
<!DOCTYPE html>
<html ng-app="wsscat">

    <head>
        <meta charset="UTF-8">
        <title></title>
    </head>
    <script type="text/javascript" src="js/angular.js"></script>

    <body>
        <article ng-controller="indexCtrl">
            <p>父作用域:</p>
            <input ng-model="name" />
            <section>
                <p>组件作用域:</p>
                <wsscat></wsscat>
                <wsscat1></wsscat1>
                <wsscat2></wsscat2>
            </section>
        </article>
    </body>
    <script>
        var app = angular.module('wsscat', []);
        app.controller('indexCtrl', function($scope) {
            $scope.name = 'wsscat';
        })

        app.directive('wsscat', function() {
            return {
                restrict: "EAMC",
                template: "<p>双向数据绑定<br /><input ng-model='name' /></p>",
                scope: false
            }
        })
        app.directive('wsscat1', function() {
            return {
                restrict: "EAMC",
                template: "<p>父影响子,子不能影响父<br /><input ng-model='name' /></p>",
                scope: true
            }
        })
        app.directive('wsscat2', function() {
            return {
                restrict: "EAMC",
                template: "<p>互不影响<br /><input ng-model='name' /></p>",
                scope: {}
            }
        })
    </script>
    <style>
        article{
            border: 1px solid #009689;
        }
        section{
            border: 1px solid #22FFFF;
        }
    </style>
</html>
@Wscats
Copy link
Owner Author

Wscats commented Aug 17, 2016

@Wscats
Copy link
Owner Author

Wscats commented Aug 17, 2016

html
**=**双向数据绑定,注意此时name属性值的变量要带{{}}
<wsscat2 name="{{name}}"></wsscat2>
js

scope: {
        name:"="
        },

html
**@**当方向影响,父能影响子,但子不能影响父
<wsscat2 name="name"></wsscat2>

scope: {
        name:"@"
},

一定要把绑定的值放在属性上面作为媒介
属性值不能设置为如data-namedata-前缀的值
如果是设置为abc-name等格式
组件里面scope属性传递的对象,里面的name属性值要遵守驼峰的写法

scope: {
        name:"@abcName"
},

Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment
Labels
None yet
Projects
None yet
Development

No branches or pull requests

1 participant