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Tactics for using PHP in a high-load site
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No two sites are alike. You really need to get a tool like jmeter and benchmark to see where yo...
Cartesian product of x and y array points into single array of 2D points
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>>> numpy.transpose([numpy.tile(x, len(y)), numpy.repeat(y, len(x))])
array([[1, 4],
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is there a css hack for safari only NOT chrome?
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There is a way to filter Safari 5+ from Chrome:
@media screen and (-webkit-min-device-pixel-ra...
Asking the user for input until they give a valid response
... def f(age): is far clearer than f = lambda age:
– GP89
May 16 '17 at 22:29
3
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Python str vs unicode types
... 11000011 10100001 (0xC3 0xA1)
≠ → 11100010 10001001 10100000 (0xE2 0x89 0xA0)
???? → 11110000 10011111 10011000 10000010 (0xF0 0x9F 0x98 0x82)
The way UTF-8 encodes characters to bit strings is very well described here.
Unicode and Encodings
Looking at the above examples, it becomes clear...
How does a public key verify a signature?
... c718 92e6 ..9..L".........
00000070: 3d5b 8534 7187 cc2d 2f94 0743 1fcb d890 =[.4q..-/..C....
My secret message
done
Private key encrypts and public key decrypts
--------------------------------------------
00000000: 6955 cdd0 66e4 3696 76e1 a328 ac67 4ca3 iU..f.6.v..(.gL.
00000010: d6bb 5896 b...
Colors in JavaScript console
...3px hsl(178.2, 100%, 50%), 52px 34px hsl(183.6, 100%, 50%), 53px 35px hsl(189, 100%, 50%), 54px 36px hsl(194.4, 100%, 50%), 55px 37px hsl(199.8, 100%, 50%), 55px 38px hsl(205.2, 100%, 50%), 56px 39px hsl(210.6, 100%, 50%), 57px 40px hsl(216, 100%, 50%), 57px 41px hsl(221.4, 100%, 50%), 58px 42px hsl...
Rails 4 multiple image or file upload using carrierwave
... it successfully, and it is generating error, UndefinedConversionError ("\x89" from ASCII-8BIT to UTF-8) For SSR solution, it works fine with Rails 4.x.x, but I am facing challenges (with Rails 5.x.x.) i.e. its storing ActionDispatch::Http::UploadedFile in database instead filename. Its also not s...
What is the optimal algorithm for the game 2048?
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You can treat the computer placing the '2' and '4' tiles as the 'opponent'.
– Wei Yen
Mar 15 '14 at ...
Why does Java switch on contiguous ints appear to run faster with added cases?
...on_word}
0x000000000287fe84: jmp 0x000000000287ff16
0x000000000287fe89: mulsd xmm0,QWORD PTR [rip+0xfffffffffffffe77] # 0x000000000287fd08
;*dmul
; - javaapplication4.Test1::multiplyByPower...