角指令如何添加到元素的属性？ [英] Angular directive how to add an attribute to the element?

问题描述

我想知道什么是应该做的工作这个片段的方式：

I'm wondering what's the way to do work this snippet:

//html
<div ng-app="app">
<div ng-controller="AppCtrl">
    <a my-dir ng-repeat="user in users">{{user.name}}</a>
</div>
</div>

//js
var app = angular.module('app', []);
            app.controller("AppCtrl", function ($scope) {
                $scope.users = [{name:'John',id:1},{name:'anonymous'}];
                $scope.fxn = function() {
                    alert('It works');
                };

            })  
            app.directive("myDir", function ($compile) {
                return {
                 link:function(scope,el){
                      el.attr('ng-click','fxn()');
                      //$compile(el)(scope); with this the script go mad 
                  }
                };
            });

我知道这是对编译阶段
但我不明白的点，这样一个简短的说明会
非常AP preciate。
先谢谢了。

I know it's about the compile phase but I don't get the point so a short explanation would be very appreciate. Thanks in advance.

推荐答案

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• creating与angularjs
新指令

• How to get ng-class with $dirty working in a directive?
• creating a new directive with angularjs

下面是一个plunker：<一href=\"http://plnkr.co/edit/ziU8d826WF6SwQllHHQq?p=$p$pview\">http://plnkr.co/edit/ziU8d826WF6SwQllHHQq?p=$p$pview

Here is a plunker: http://plnkr.co/edit/ziU8d826WF6SwQllHHQq?p=preview

app.directive("myDir", function($compile) {
  return {
    priority:1001, // compiles first
    terminal:true, // prevent lower priority directives to compile after it
    compile: function(el) {
      el.removeAttr('my-dir'); // necessary to avoid infinite compile loop
      el.attr('ng-click', 'fxn()');
      var fn = $compile(el);
      return function(scope){
        fn(scope);
      };
    }
  };
});

---

更清洁的解决方案 - 不使用 ngClick 都：

一个plunker：<一href=\"http://plnkr.co/edit/jY10enUVm31BwvLkDIAO?p=$p$pview\">http://plnkr.co/edit/jY10enUVm31BwvLkDIAO?p=$p$pview

app.directive("myDir", function($parse) {
  return {
    compile: function(tElm,tAttrs){
      var exp = $parse('fxn()');
      return function (scope,elm){
        elm.bind('click',function(){
          exp(scope);
        });  
      };
    }
  };
});

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