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How to change int into int64?
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This is called type conversion :
i := 23
var i64 int64
i64 = int64(i)
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What is ?= in Makefile
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?= indicates to set the KDIR variable only if it's not set/doesn't have a value.
For example:
KDIR ?= "foo"
KDIR ?= "bar"
test:
echo $(KDIR)
Would print "foo"
GNU manual: http://www.gnu.org/software/make/manual/html_node/S...
django - query filter on manytomany is empty
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Adding to @Bernhard answer, other possible solution can be achieved using the Q() object.
from django.db.models import Q
filters = Q(manytomany=None)
TestModel.objects.filter(filters)
Negation:
filters = ~Q(manytomany=None)
TestModel.objects.filter(filters)
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Calling static generic methods
...get of the assignment, as per JLS section 15.12.2.8. To be explicit, you'd call something like:
Foo.<String>createFoo();
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Python Flask Intentional Empty Response
...ine: at the bottom of the http package docs; these used to be the normal location until the HTTPStatus enum was introduced, see github.com/python/cpython/commit/…
– Martijn Pieters♦
Sep 21 '17 at 15:13
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Parse usable Street Address, City, State, Zip from a string [closed]
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I've done a lot of work on this kind of parsing. Because there are errors you won't get 100% accuracy, but there are a few things you can do to get most of the way there, and then do a visual BS test. Here's the general way to go about it. It's not code, because it's pretty a...
How do you determine which backend is being used by matplotlib?
...vely, such as from within an Ipython session, or from within a script, how can you determine which backend is being used by matplotlib?
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Haskell export current module with additional imported module
... imageUploader: {
brandingHtml: "Powered by \u003ca href=\"https://imgur.com/\"\u003e\u003csvg class=\"svg-icon\" width=\"50\" height=\"18\" viewBox=\"0 0 50 18\" fill=\"none\" xmlns=\"http://www.w3.org/2000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454 46.2665...
C++ template typedef
...cialization if I'm not wrong, so the second option is still useful in many cases.
– Utkarsh Bhardwaj
Feb 3 '16 at 14:27
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Can someone explain the HTML5 aria-* attribute?
I wanted to know what the aria-* attributes are used for. What values can they have, and are they defined values or can I create my own values?
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