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Ruby - test for array
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edited Mar 30 at 18:35
siery
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answered Oct 6...
Understanding Canvas and Surface concepts
...s of drawing to SurfaceView and therefore the whole Surface / Canvas / Bitmap system, which is used in Android.
3 Answe...
django - why is the request.POST object immutable?
As the title asks, why did the Django guys decide to implement the request.POST object with a querydict (which, of course, in turn, makes the whole thing immutable?)
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Join vs. sub-query
...ed JOIN over sub-query. But nowadays everyone uses sub-query, and I hate it; I don't know why.
19 Answers
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Cartesian product of multiple arrays in JavaScript
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2020 Update: 1-line (!) answer with vanilla JS
Original 2017 Answer: 2-line answer with vanilla JS:
(see updates below)
All of the answers here are overly complicated, most of them take 20 lines of code or even more.
This example uses just two lines of vani...
How do you force a makefile to rebuild a target
...ther makefile. Since this makefile calls more makefiles that does the work it doesnt really change. Thus it keeps thinking the project is built and upto date.
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Unable to export Apple production push SSL certificate in .p12 format
...s out all you have to do is select "My Certificates" on the left panel and it enables the .p12 option.
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Behaviour of increment and decrement operators in Python
...ncrement/decrement operator can be applied on a variable (like ++count ). It compiles, but it does not actually change the value of the variable!
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Why does Git say my master branch is “already up to date” even though it is not?
I just deleted ALL the code from a file in my project and committed the change to my local git (on purpose). I did
7 Answe...
Foreign Key naming scheme
I'm just getting started working with foreign keys for the first time and I'm wondering if there's a standard naming scheme to use for them?
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