Within my Angular.js module, I have defined an object like this:
$scope.Stack = function () {
this.top = null;
this.size = 0;
};
However, when I try to use the push method of this object, I encounter an error stating undefined:
$scope.Stack.push = function (data) {
return this.size;
};
Can anyone explain why this is happening?
It seems like your current approach may not align with your true intentions. Your function is labeled as Stack, but then you attempt to use the code:
$scope.Stack.push(1)
This line tries to access the push property on the Stack function, which actually doesn't exist. It is more likely that you intend to create an instance of a Stack and invoke the push method on that instance.
var myStack = new $scope.Stack();
myStack.push(1); // Success!
In most scenarios, this solution should work fine. However, keep in mind that the context of this can be dynamic. I recommend familiarizing yourself with MDN's explanation of this.
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