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Real world use cases of bitwise operators [closed]
...ets
Always involves checksums, parity, stop bits, flow control algorithms, and so on, which usually depend on the logic values of individual bytes as opposed to numeric values, since the medium may only be capable of transmitting one bit at a time.
Compression, Encryption
Both of these are heavily d...
Python using enumerate inside list comprehension
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Not mandatory to be a tuple. Any expression using i and j that returns a value will do
– Alvaro
Jul 26 '14 at 15:02
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How to get the current URL within a Django template?
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Django 1.9 and above:
## template
{{ request.path }} # -without GET parameters
{{ request.get_full_path }} # - with GET parameters
Old:
## settings.py
TEMPLATE_CONTEXT_PROCESSORS = (
'django.core.context_processors.request',...
Checking if object is empty, works with ng-show but not from controller?
...defined:
$scope.items = null;
In this way, ng-show should keep working, and in your controller you can just do:
if ($scope.items) {
// items have value
} else {
// items is still null
}
And in your $http callbacks, you do the following:
$http.get(..., function(data) {
$scope.items...
How can I run a function from a script in command line?
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If the script only defines the functions and does nothing else, you can first execute the script within the context of the current shell using the source or . command and then simply call the function. See help source for more information.
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How do I overload the [] operator in C# [duplicate]
...t every time I need to implement an index operator, I have to look it up? And each time I end up on this answer... wish I could vote it up multiple times :)
– DSO
Dec 31 '11 at 0:52
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Descending order by date filter in AngularJs
So the book comes from rest api and it has many readers attached. I want to get the 'recent' reader.
9 Answers
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Count(*) vs Count(1) - SQL Server
Just wondering if any of you people use Count(1) over Count(*) and if there is a noticeable difference in performance or if this is just a legacy habit that has been brought forward from days gone past?
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Is there any way to specify a suggested filename when using data: URI?
...works on Chrome, Firefox, Edge, Opera, desktop Safari 10+, iOS Safari 13+, and not IE11.
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Diff Algorithm? [closed]
... been looking like crazy for an explanation of a diff algorithm that works and is efficient.
5 Answers
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