angular 指令学习
在指令中scope 定义的值的用法:例如
scope: {
local: "@nameprop",
secondLocal:"@secondNameprop",
secondLocalTest:"@threeNameprop"
}
local,secondLocal,secondLocalTest这三个值只能在指令内使用。而nameprop,secondNameprop,threeNameprop作为指令属性在指令上使用。
<!DOCTYPE html> <html> <head> <meta charset="utf-8"> <title>指令学习</title> <script src="https://cdn.bootcss.com/angular.js/1.7.0/angular.min.js"></script> </head> <body ng-app='app'> <div ng-controller="myController"> <div ng-click="topClick('test')">我是父类</div> <input type="text" ng-model="myaddress"/> <hr> {{myaddress}}aaa <hr> ccc <hr> <my-directive my-data="myaddress" my-click="otherClick('other-bbb')"></my-directive> </div> </body> <script type="text/javascript"> var app = angular.module('app', []); app.directive('myDirective',myDirective); function myDirective(){ var directive={ restrict:'AE', template:"<div ng-click='sonClick(1111)'>点击我</div><div>{{innerData}}</div>", scope:{ selectData:"&myClick", innerData:"=myData"//myData作为指令属性使用这里且是共享的,可以双向改变 }, link:function(scope,ele,attr){ scope.sonClick=function(aaa){ scope.innerData=aaa; // innerData只在指令内部使用 scope.selectData(); } } } return directive; }; app.controller("myController",["$scope",function($scope){ $scope.topClick = function(aa){ alert(aa); } $scope.otherClick = function(aa){ alert(aa); } $scope.myaddress="广州"; //初始化数据 }]) </script> </html>
效果图
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