The delete operator removes a property from an object. It cannot remove a variable. So the answer to the question depends on how the global variable or property is defined. (1) If it is created with var, it cannot be deleted. For example: (2) If it is created without var, it can be deleted. Technical Explanation 1. Using var In … Read more
There are different ways to delete an array element, where some are more useful for some specific tasks than others. Deleting a single array element If you want to delete just one array element you can use unset() or alternatively \array_splice(). If you know the value and don’t know the key to delete the element you can use \array_search() to … Read more
To delete a key regardless of whether it is in the dictionary, use the two-argument form of dict.pop(): This will return my_dict[key] if key exists in the dictionary, and None otherwise. If the second parameter is not specified (i.e. my_dict.pop(‘key’)) and key does not exist, a KeyError is raised. To delete a key that is guaranteed to exist, you can also use: This will raise a KeyError if the … Read more