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':app:lintVitalRelease' error when generating signed apk
...etter to correct the error! It is also possible to generate the report manually with gradlew lint or via an IDE, see developer.android.com/studio/write/lint
– Anigif
May 24 '18 at 8:49
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Statistics: combinations in Python
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@robertking - Ok, you were both petty and technically correct. What i did was meant as illustration of how to write one's own function; i knew it is not accurate for big enough N and K due to floating point precision. But we can fix that - see above, now it should not err f...
What does !! mean in ruby?
...:
!!nil #=> false
!!"abc" #=> true
!!false #=> false
It's usually not necessary to use though since the only false values to Ruby are nil and false, so it's usually best to let that convention stand.
Think of it as
!(!some_val)
One thing that is it used for legitimately is preventi...
Nested function in C
...nction, but it's not a nested function.
gcc has a language extension that allows nested functions. They are nonstandard, and as such are entirely compiler-dependent.
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How to crop an image using PIL?
...o the implied pixel corners; the centre of a pixel addressed as (0, 0) actually lies at (0.5, 0.5).
Coordinates are usually passed to the library as 2-tuples (x, y). Rectangles are represented as 4-tuples, with the upper left corner given first. For example, a rectangle covering all of an 800x600 p...
Faster s3 bucket duplication
...uckets without having to download and upload each file. The command I normally run to duplicate buckets using s3cmd is:
7 ...
Subtract 7 days from current date
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Actually this can be done simply by: [now dateByAddingDays:-7]
– CrashOverride
Mar 5 '15 at 23:45
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JPG vs. JPEG image formats
... Photographic Expert Group File Format was ‘.jpeg’; however in Windows all files required a three letter file extension. So, the file extension was shortened to ‘.jpg’. However, Macintosh was not limited to three letter file extensions, so Mac users used ‘.jpeg’. Eventually, with upgrade...
Combating AngularJS executing controller twice
... This solved my problem of the controller being executed twice. All I did was remove the ng-controller in the template and now its only executing once.
– torbenrudgaard
May 20 '17 at 7:35
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MySQL dump by query
...he database by query. What he asked and what he meant were different. He really wanted to just mysqldump all tables.
mysqldump --tables myTable --where="id < 1000"
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