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How to Calculate Execution Time of a Code Snippet in C++
... it is implementation dependent, but it usually 15 ms as well.
#ifdef _WIN32
#include <Windows.h>
#else
#include <sys/time.h>
#include <ctime>
#endif
/* Remove if already defined */
typedef long long int64; typedef unsigned long long uint64;
/* Returns the amount of milliseconds...
Restrict varchar() column to specific values?
...2
Adam
1,32711 gold badge1515 silver badges2222 bronze badges
answered Mar 14 '10 at 7:05
Ashish GuptaAshish G...
How to create an array of 20 random bytes?
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answered Apr 15 '11 at 23:14
maericsmaerics
126k3434 gold badges234234 silver badges268268 bronze badges
...
How to find keys of a hash?
...bject.keys performing this operation:
var obj = { "a" : 1, "b" : 2, "c" : 3};
alert(Object.keys(obj)); // will output ["a", "b", "c"]
Compatibility details can be found here.
On the Mozilla site there is also a snippet for backward compatibility:
if(!Object.keys) Object.keys = function(o){
...
'console' is undefined error for Internet Explorer
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379
Try
if (!window.console) console = ...
An undefined variable cannot be referred directly. H...
Why do Python's math.ceil() and math.floor() operations return floats instead of integers?
...integers.
Consider: If floor() returned an integer, what should floor(1.0e30) return?
Now, while Python's integers are now arbitrary precision, it wasn't always this way. The standard library functions are thin wrappers around the equivalent C library functions.
...
How to do Mercurial's 'hg remove' for all missing files?
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368
This will add all new files that are not ignored, and remove all locally missing files
hg add...
Remove whitespaces inside a string in javascript
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answered May 29 '12 at 13:43
Henrik AnderssonHenrik Andersson
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...
How to sort an array in descending order in Ruby
... user system total real
sort 3.960000 0.010000 3.970000 ( 3.990886)
sort reverse 4.040000 0.000000 4.040000 ( 4.038849)
sort_by -a[:bar] 0.690000 0.000000 0.690000 ( 0.692080)
sort_by a[:bar]*-1 0.700000 0.000000 0.700...
Why does the month argument range from 0 to 11 in JavaScript's Date constructor?
...see the old standard (POSIX) localtime C function http://linux.die.net/man/3/localtime
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