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Connect to a locally built Jekyll Server using mobile devices in the LAN
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edited May 5 at 17:24
answered May 17 '13 at 12:11
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Custom numeric format string to always display the sign
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edited May 24 '16 at 21:50
Craig
6,14733 gold badges2828 silver badges4747 bronze badges
answered Dec ...
Performance of foreach, array_map with lambda and array_map with static function
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FWIW, I just did the benchmark since poster didn't do it. Running on PHP 5.3.10 + XDebug.
UPDATE 2015-01-22 compare with mcfedr's answer below for additional results without XDebug and a more recent PHP version.
function lap($func) {
$t0 = microtime(1);
$numbers = range(0, 1000000);
$ret...
What is the difference between Ruby 1.8 and Ruby 1.9
...ion: Use Hash.key
Fixnum.to_sym Now Gone
Ruby 1.9
irb(main):001:0> 5.to_sym
NoMethodError: undefined method 'to_sym' for 5:Fixnum
Ruby 1.8.6
irb(main):001:0> 5.to_sym
=> nil
(Cont'd) Ruby 1.9
# Find an argument value by name or index.
def [](index)
lookup(index.to_sym)
end
sv...
How can I remove a flag in C?
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edited Mar 4 '13 at 15:17
Tim Cooper
138k3434 gold badges286286 silver badges249249 bronze badges
a...
How do you rotate a two dimensional array?
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Here it is in C#
int[,] array = new int[4,4] {
{ 1,2,3,4 },
{ 5,6,7,8 },
{ 9,0,1,2 },
{ 3,4,5,6 }
};
int[,] rotated = RotateMatrix(array, 4);
static int[,] RotateMatrix(int[,] matrix, int n) {
int[,] ret = new int[n, n];
for (int i = 0; i < n; ++i) {
for (i...
Why does (0 < 5 < 3) return true?
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Order of operations causes (0 < 5 < 3) to be interpreted in javascript as ((0 < 5) < 3) which produces (true < 3) and true is counted as 1, causing it to return true.
This is also why (0 < 5 < 1) returns false, (0 < 5) returns true, wh...
What is the difference between ~> and >= when specifying rubygem in Gemfile?
...sion provided and use that until it reaches a maximum version. So ~>0.8.5 is semantically equivalent to:
gem "cucumber", ">=0.8.5", "<0.9.0"
The easy way to think about it is that you're okay with the last digit incrementing to some arbitrary value, but the ones preceding it in the string...
Obfuscated C Code Contest 2006. Please explain sykes2.c
... (i/64)];. i/64 is the line number (6 to 0) and i*2&8 is 8 iff i is 4, 5, 6 or 7 mod 8.
if((i & 2) == 0) shift /= 8; shift = shift % 8 selects either the high octal digit (for i%8 = 0,1,4,5) or the low octal digit (for i%8 = 2,3,6,7) of the table value. The shift table ends up looking like ...
What is the smallest possible valid PDF?
...obj<</Type/Page/MediaBox[0 0 3 3]>>endobj
xref
0 4
0000000000 65535 f
0000000010 00000 n
0000000053 00000 n
0000000102 00000 n
trailer<</Size 4/Root 1 0 R>>
startxref
149
%EOF
which is 291 bytes of PDF joy. Acrobat opens it, but it complains somewhat. There is one page in...