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How to get the max of two values in MySQL?
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edited May 24 '19 at 10:13
answered Oct 14 '09 at 11:29
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How to check if a file exists in Documents folder?
...rchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES)[0];
NSString* foofile = [documentsPath stringByAppendingPathComponent:@"foo.html"];
BOOL fileExists = [[NSFileManager defaultManager] fileExistsAtPath:foofile];
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Convert an integer to a float number
...about this. a := uint(8); b := uint(5); c := float32(a/b) will make c be 1.00000, not 1.6.
– isomorphismes
Nov 9 '19 at 20:00
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Why does SIGPIPE exist?
...ICER.. GitHub STOP HELPING ICE
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Position Absolute + Scrolling
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.inner: { position: relative; height: auto; }
.full-height: { height: 100%; }
Setting the inner div's position to relative makes the absolutely position elements inside of it base their position and height on it rather than on the .container div, which has a fixed height. Without the inner, re...
Flatten an irregular list of lists
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390
Using generator functions can make your example a little easier to read and probably boost the p...
How to atomically delete keys matching a pattern using Redis
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Starting with redis 2.6.0, you can run lua scripts, which execute atomically. I have never written one, but I think it would look something like this
EVAL "return redis.call('del', unpack(redis.call('keys', ARGV[1])))" 0 prefix:[YOUR_PREFIX e.g del...
Why does Python code run faster in a function?
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540
You might ask why it is faster to store local variables than globals. This is a CPython implemen...
Date ticks and rotation in matplotlib
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If you prefer a non-object-oriented approach, move plt.xticks(rotation=70) to right before the two avail_plot calls, eg
plt.xticks(rotation=70)
avail_plot(axs[0], dates, s1, 'testing', 'green')
avail_plot(axs[1], dates, s1, 'testing2', 'red')
This sets the rotation property before setting up t...
ViewPager with previous and next page boundaries
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Quoting ...