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How to declare array of zeros in python (or an array of a certain size) [duplicate]
I am trying to build a histogram of counts... so I create buckets.
I know I could just go through and append a bunch of zeros i.e something along these lines:
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How to list the size of each file and directory and sort by descending size in Bash?
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DeveloperDeveloper
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Is there a printf converter to print in binary format?
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Hacky but works for me:
#define BYTE_TO_BINARY_PATTERN "%c%c%c%c%c%c%c%c"
#define BYTE_TO_BINARY(byte) \
(byte & 0x80 ? '1' : '0'), \
(byte & 0x40 ? '1' : '0'), \
(byte & 0x20 ? '1' : '0'), \
(byte & 0x...
What method in the String class returns only the first N characters?
I'd like to write an extension method to the String class so that if the input string to is longer than the provided length N , only the first N characters are to be displayed.
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Generating random numbers in Objective-C
...ar *dat, int datlen);
DESCRIPTION
The arc4random() function uses the key stream generator employed by the arc4 cipher, which uses 8*8 8
bit S-Boxes. The S-Boxes can be in about (2**1700) states. The arc4random() function returns pseudo-
random numbers in the range of 0 to (2**32)-1...
HTML5 Number Input - Always show 2 decimal places
... edited Apr 1 at 21:37
Dale K
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answered Mar 28 '14 at 16:11
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Get the client's IP address in socket.io
When using socket.IO in a Node.js server, is there an easy way to get the IP address of an incoming connection? I know you can get it from a standard HTTP connection, but socket.io is a bit of a different beast.
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How to atomically delete keys matching a pattern using Redis
...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 delete_me_*]
Warning: As the Redis document says, because of performance maters, keys
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Remove last item from array
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AntonAnton
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Is there an “exists” function for jQuery?
How can I check the existence of an element in jQuery?
43 Answers
43
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