javascript 传入一个函数（通过引用）作用域中的一个变量
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Pass in a function (by reference) a variable in the scope
提问by Joker
There is a way (in angularJS) to pass by reference a variable in the scope in a function (to modify it)? I've tried but the variable change doesn't happen. Here my code
有没有办法（在 angularJS 中）通过引用传递函数作用域中的变量（修改它）？我试过了，但变量变化没有发生。这是我的代码
$scope.modifyVar = function (myVariable){
myVariable = 92;
}
$scope.modifyVar($scope.txtNumberOfChuck);
回答by V31
You cannot pass a variable by reference in Javascript. However you can pass the complete object and get your values changed.
您不能在 Javascript 中通过引用传递变量。但是，您可以传递完整的对象并更改您的值。
In your case you can pass the $scope object and then modify the property value. Something like this:
在您的情况下，您可以传递 $scope 对象，然后修改属性值。像这样的东西：
$scope.modifyVar = function (myObj){
myObj.txtNumberOfChuck = 92;
}
$scope.modifyVar($scope);
