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How do I convert a byte array to Base64 in Java?
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Java 8+
Encode or decode byte arrays:
byte[] encoded = Base64.getEncoder().encode("Hello".getBytes());
println(new String(encoded)); // Outputs "SGVsbG8="
byte[] decoded = Base64.getDecoder().decode(encoded);
println(new String...
Get the name of the currently executing method
...ame as a string, call __method__.to_s instead.
Note: This requires Ruby 1.8.7.
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How to merge 2 List and removing duplicate values from it in C#
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answered Oct 27 '10 at 8:40
Adriaan StanderAdriaan Stander
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Loading custom configuration files
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OliverOliver
37.1k77 gold badges8080 silver badges132132 bronze badges
1
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What does numpy.random.seed(0) do?
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598
np.random.seed(0) makes the random numbers predictable
>>> numpy.random.seed(0) ; nump...
while (1) Vs. for (;;) Is there a speed difference?
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218
In perl, they result in the same opcodes:
$ perl -MO=Concise -e 'for(;;) { print "foo\n" }'
a ...
What does auto do in margin:0 auto?
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Eric Bishard
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answered Jul 3 '10 at 8:05
djdd87djdd87
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An efficient way to transpose a file in Bash
... }
print str
}
}' file
output
$ more file
0 1 2
3 4 5
6 7 8
9 10 11
$ ./shell.sh
0 3 6 9
1 4 7 10
2 5 8 11
Performance against Perl solution by Jonathan on a 10000 lines file
$ head -5 file
1 0 1 2
2 3 4 5
3 6 7 8
4 9 10 11
1 0 1 2
$ wc -l < file
10000
$ time perl test.pl ...
Is inject the same thing as reduce in ruby?
...t an array, but beware of duck typing! (3_000_000_000_000_000.size returns 8 and 3_000_000_000_000_000_000_000_000_000_000_000_000_000_000.size returns 20; it seems to be the amount of memory it takes up.)
– ChrisPhoenix
Oct 15 '14 at 1:39
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jQuery map vs. each
... remove an item from an array. For example:
var items = [0,1,2,3,4,5,6,7,8,9];
var itemsLessThanEqualFive = $.map(items, function(i) {
// removes all items > 5
if (i > 5)
return null;
return i;
});
// itemsLessThanEqualFive = [0,1,2,3,4,5]
You'll also note that the this is not ...