如何从父范围调用在子范围中定义的方法？
function ParentCntl() {
// I want to call the $scope.get here
}
function ChildCntl($scope) {
$scope.get = function() {
return "LOL";
}
}
你可以使用
$broadcast从父到子：
function ParentCntl($scope) {
$scope.msg = "";
$scope.get = function(){
$scope.$broadcast ('someEvent');
return $scope.msg;
}
}
function ChildCntl($scope) {
$scope.$on('someEvent',function(e) {
$scope.$parent.msg = $scope.get();
});
$scope.get = function(){
return "LOL";
}
}
工作小提琴：http://jsfiddle.net/wUPdW/2/
更新：有另一个版本，较少耦合和更多的可测试：
function ParentCntl($scope) {
$scope.msg = "";
$scope.get = function(){
$scope.$broadcast ('someEvent');
return $scope.msg;
}
$scope.$on('pingBack',function(e,data) {
$scope.msg = data;
});
}
function ChildCntl($scope) {
$scope.$on('someEvent',function(e) {
$scope.$emit("pingBack",$scope.get());
});
$scope.get = function(){
return "LOL";
}
}
