In my quest to understand memory leak management in angularjs, I have encountered the $destroy method. This got me thinking - given that JavaScript already has a delete keyword, is there any distinction between the two?
In my quest to understand memory leak management in angularjs, I have encountered the $destroy method. This got me thinking - given that JavaScript already has a delete keyword, is there any distinction between the two?
When using JavaScript, the delete operator can be used to remove a property from an object. If there are no more references to that property, it will be automatically released.
var Employee = {
firstname: "Mohammed",
lastname: "Haddad"
}
console.log(Employee.firstname);
// expected output: "Mohammed"
delete Employee.firstname;
console.log(Employee.firstname);
// expected output: undefined
In Angular, when $scope.$destroy() is executed, all listeners registered via $on on that $scope will be removed.
$scope.$on("$destroy", function() {
});
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