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Passing an Array as Arguments, not an Array, in PHP
... in the function call
variadic(...$array);
// 'Hello World'
Note: array items are mapped to arguments by their position in the array, not their keys.
As per CarlosCarucce's comment, this form of argument unpacking is the fastest method by far in all cases. In some comparisons, it's over 5x faste...
How to link to apps on the app store
...ng the store from an app:
Launch iTunes on your computer.
Search for the item you want to link to.
Right-click or control-click on the item's name in iTunes, then choose "Copy iTunes Store URL" from the pop-up menu.
In your application, create an NSURL object with the copied iTunes URL, then pass ...
How to sum up an array of integers in C#
...ut of index.
int[] arr = new int[] { 1, 2, 3 };
int sum = 0;
foreach (var item in arr)
{
sum += item;
}
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Naming returned columns in Pandas aggregate function? [duplicate]
...ng part. Please be aware of the nested dictionary if there are more than 1 item.
def agg_translate_agg_rename(input_agg_dict):
agg_dict = {}
rename_dict = {}
for k, v in input_agg_dict.items():
if len(v) == 1:
agg_dict[k] = list(v.values())[0]
rename_dict...
PUT vs. POST in REST
... and POST is RFC 2616 §9.5ff.
POST creates a child resource, so POST to /items creates a resources that lives under the /items resource.
Eg. /items/1. Sending the same post packet twice will create two resources.
PUT is for creating or replacing a resource at a URL known by the client.
Therefo...
“for line in…” results in UnicodeDecodeError: 'utf-8' codec can't decode byte
...ding for that problem. The encoding was "ISO-8859-1", so replacing open("u.item", encoding="utf-8") with open('u.item', encoding = "ISO-8859-1") will solve the problem.
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Get item in the list in Scala?
...-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f4981689%2fget-item-in-the-list-in-scala%23new-answer', 'question_page');
}
);
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N...
Is there a built-in method to compare collections?
...};
bool isequal = list1.Compare(list2).IsSame;
This will check to see if items were added / removed:
var list1 = new[] { "Billy", "Bob" };
var list2 = new[] { "Bob", "Sally" };
var diff = list1.Compare(list2);
var onlyinlist1 = diff.Removed; //Billy
var onlyinlist2 = diff.Added; //Sally
var inb...
Reason to Pass a Pointer by Reference in C++?
... &Storage::changeObject);
}
static void changeObject(Object*& item) {
delete item;
item = 0;
if (someCondition) item = new Object();
}
};
Otherwise, if you use changeObject(Object* item) signature you have copy of pointer, not original one.
...
How to iterate over the keys and values with ng-repeat in AngularJS?
...h is that it will be alphabetized by the keys so the naming matters if the item order is relevant to the display.
– display name
Mar 11 '14 at 18:49
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