我有一个问题,代码如下:
HTML:
<div class="overflow-hidden ag-center" world-data info="target"></div>
JS:
.directive('worldData', ['$interval', function($interval) {
return {
scope: {
chart: '=info'
},
template: '<div>{{chart.aaa}}</div>',
link: function($scope, element, attrs) {
$scope.target = {'aaa': 'aaa'};
aaa = $scope.chart;
}
}
}])
图表值未定义,模板没有值,但是当我在控制器中声明$ scope.target时,代码有效,为什么?
答案 0 :(得分:1)
这通常应该是模式:
private volatile List<int> _list;
public void Process() {
try {
// This is an acquire, because we're *reading* from a volatile field.
_list.Add(42);
} finally {
// This is a release, because we're *writing* to a volatile field.
_list = _list;
}
}
-
.controller('myController', function($scope){
$scope.target = {'aaa': 'aaa'}; //In reality, you'd normally load this up via some other method, like $http.
})
.directive('worldData', [function() {
return {
scope: {
chart: '=info'
},
template: '<div>{{chart.aaa}}</div>'
}
}])
或者,指令可以负责获取和获取数据,而不是传递任何数据。如果您不需要多个地方的数据,您只需要考虑这一点。