javascript - 如何在指令中使用作用域的变量？

Question

我想获取指令中作用域的变量作为 JavaScript 变量。 这是我的代码:

app.controller("Home", ["$scope", function($scope) {
    ...
    $scope.nb_msg = data.length;
    ...
}]);

app.directive("myDiv", function() {
    // Here, i want to get $scope.nb_msg
    var nb_msg = ???;
    var result = [];
    // do something with nb_msg to get result
    var template = "";
    ...
    for(var i=0; i<10; i++) {
        template += "<span>" + result[i] + "</span>";
    }
    ...

    return {
        restrict: "E",
        template: template
    };
});

我该怎么办？提前致谢!

Answer 1

您可以在链接函数中访问范围:

app.directive("myDiv", function() {    
    return {
        restrict: "E",
        template: '<span ng-repeat="i in result">{{i}}</span>',
        link: function(scope, element, attr) {

             // Here, i want to get $scope.nb_msg
             var nb_msg = scope.nb_msg;
             scope.result = [];
             for(var i=0; i<10; i++) {
                 scope.result.push(i);
             }


        }
    };
});