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What does it mean in shell when we put a command inside dollar sign and parentheses: $(command)
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– Jonathan Leffler
Aug 1 '13 at 4:03
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Technically, $(echo foo) creates a command substitution,...
How to index into a dictionary?
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Dictionaries are unordered in Python versions up to and including Python 3.6. If you do not car...
UIView Infinite 360 degree rotation animation?
I'm trying to rotate a UIImageView 360 degrees, and have looked at several tutorials online. I could get none of them working, without the UIView either stopping, or jumping to a new position.
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What does “Auto packing the repository for optimum performance” mean?
...s git gc --auto. If there are enough loose objects (by default, at least 6700), it will then invoke git repack -d -l to pack them. If there are too many separate packs, it will also repack them into one.
A pack is a delta-compressed single file, containing a large number of objects. It's more effic...
mysql create user if not exists
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In 5.7.6 and above, you should be able to use CREATE USER
CREATE USER IF NOT EXISTS 'user'@'loc...
converting double to integer in java
..., the result is equal to the value of the expression:
(long)Math.floor(a + 0.5d)
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Javascript dynamically invoke object method from string
... Karoly HorvathKaroly Horvath
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How to make the 'cut' command treat same sequental delimiters as one?
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edited Apr 23 '18 at 23:03
Austin Adams
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Converting of Uri to String
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Rico HarisinRico Harisin
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add a comm...
How do I return rows with a specific value first?
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answered Aug 9 '09 at 1:57
Rob FarleyRob Farley
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