我创造了这个小提琴来展示我的问题......
我正在将一个新创建的数组传递给一个指令,一切正常。但是,我在控制台窗口中收到错误消息:
Error: [$rootScope:infdig] 10 $digest() iterations reached. Aborting!
有什么想法我需要按摩来清理它吗?我希望能够重用该指令而无需更新控制器。
这是html
<body ng-app="myApp">
<test-dir fam-people='[1,4,6]'> </test-dir>
<test-dir fam-people='[2,1,0]'> </test-dir>
</body>
这是JS。
var myApp = angular.module('myApp',[]);
myApp.directive('testDir', function() {
return { restrict: 'E'
, scope: { famPeople: '=famPeople' }
, template: "<ol> <li ng-repeat='p in famPeople'> {{p}}"
};
});
答案 0 :(得分:14)
该错误是因为您的指令无法将数组解释为数组,请尝试:
<body ng-app="myApp" ng-controller="ctrl1">
<test-dir fam-people='people'> </test-dir>
</body>
var myApp = angular.module('myApp', []);
myApp.directive('testDir', function() {
return { restrict: 'E'
, scope: { famPeople: '=' }
, template: "<ol> <li ng-repeat='p in famPeople'> {{p}}"
};
});
控制器和指令:
myApp.controller("ctrl1",function($scope){
$scope.people=[1,4,6];
});
修改
或者您可以将其作为属性传递并将其解析为数组:
<body ng-app="myApp" >
<test-dir fam-people='[1,4,6]'> </test-dir>
</body>
指令:
var myApp = angular.module('myApp', []);
myApp.directive('testDir', function() {
return { restrict: 'E',
//scope: { famPeople: '=' },
template: "<ol> <li ng-repeat='p in people track by $index'> {{p}}",
link:function(scope, element, attrs){
scope.people=JSON.parse(attrs.famPeople);
}
};
});
请参阅fiddle。
答案 1 :(得分:14)
当数组包含字符串时,JSON解析不起作用。
例如:
<file-handler fh-services="['BOX','DROPBOX']"></file-handler>
在指令中,您可以使用scope.$eval
将属性中显示的内容转换为数组。
scope.$eval(attrs.fhServices)
答案 2 :(得分:0)
怎么样:
<body ng-app="myApp">
<test-dir fam-people='1;4;6'> </test-dir>
<test-dir fam-people='2;1;0'> </test-dir>
</body>
和
var myApp = angular.module('myApp', []);
myApp.directive('testDir', function() {
return { restrict: 'E',
//scope: { famPeople: '=' },
template: "<ol> <li ng-repeat='p in people track by $index'> {{p}}",
link:function(scope, element, attrs){
scope.people= attrs.famPeople.split(';');
}
};
});
最干净的解决方案?