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How can I add new array elements at the beginning of an array in Javascript?
... [thingToInsertToFront].concat(originalArray).reduce(fn).reverse().map(fn) etc... If you use unshift, you can't do that chaining because all you get back is the length.
– StJohn3D
Sep 23 '16 at 18:27
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How to round up a number to nearest 10?
...d up, it rounds to the nearest 10. To solve this, add +5 to your number in order to round up. If you want to round down, do -5.
So in code:
round($num + 5, -1);
You can't use the round mode for rounding up, because that only rounds up fractions and not whole numbers.
If you want to round up to ...
How to go back (ctrl+z) in vi/vim
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How to convert a file into a dictionary?
... @peaxol: We use a generator expression instead of a list comprehension in order to not create an intermediate list.
– Ignacio Vazquez-Abrams
Oct 7 '17 at 19:00
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Redis command to get all available keys?
...case KEYS command was not retrieving results because my database was 1. In order to select the db you want, use SELECT.
The db is identified by an integer.
SELECT 1
KEYS *
I post this info because none of the previous answers was solving my issue.
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How can I do time/hours arithmetic in Google Spreadsheet?
... work in the current version of GSheets when using the Duration format. In order to get decimal hours you need to do something like this: abs(-time(8,30,0)-1)*24 = 8.5
– Steve Gon
Oct 26 '17 at 16:10
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Kill process by name?
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If you have to consider the Windows case in order to be cross-platform, then try the following:
os.system('taskkill /f /im exampleProcess.exe')
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What is the difference between lock and Mutex?
...re are several other "minor" differences, like how abandonment is handled, etc.
The same can be said about ReaderWriterLock and ReaderWriterLockSlim in 3.5, Semaphore and the new SemaphoreSlim in .NET 4.0 etc.
It is true that the latter xxSlim classes cannot be used as a system-wide sync primitives...
How to checkout in Git by date?
... can use the following.
git checkout $(
git log --reverse --author-date-order --pretty=format:'%ai %H' master |
awk '{hash = $4} $1 >= "2016-04-12" {print hash; exit 0 }
)
(If you also want to specify the time use $1 >= "2016-04-12" && $2 >= "11:37" in the awk predicate.)
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How to view the contents of an Android APK file?
... code and analyze size) the best way
2.open by applications winRar,7zip,etc (Just to see photos and ...)
3.use website javadecompilers (For Photo and java code)
4.use APK Tools (For Photo and java code)
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