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Sleep until a specific time/date
I want my bash script to sleep until a specific time. So, I want a command like "sleep" which takes no interval but an end time and sleeps until then.
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Regex to replace multiple spaces with a single space
... string.replace(/\s\s+/g, ' ');
If you really want to cover only spaces (and thus not tabs, newlines, etc), do so:
string = string.replace(/ +/g, ' ');
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Fastest way to check if string contains only digits
...ters. Including full width decimal digits ０１２３... (common in China and Japan) and digits from other cultures e.g. ০১২௧௨௩௪꘤꘥꘦꘧꘨ and plenty more.
– CodesInChaos
Sep 18 '13 at 9:08
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Best way to replace multiple characters in a string?
...ent answers along with one extra.
With an input string of abc&def#ghi and replacing & -> \& and # -> \#, the fastest way was to chain together the replacements like this: text.replace('&', '\&').replace('#', '\#').
Timings for each function:
a) 1000000 loops, best of 3:...
What does %s mean in a python format string?
What does %s mean in Python? And what does the following bit of code do?
7 Answers
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What is the fastest integer division supporting division by zero no matter what the result is?
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Inspired by some of the comments I got rid of the branch on my Pentium and gcc compiler using
int f (int x, int y)
{
y += y == 0;
return x/y;
}
The compiler basically recognizes that it can use a condition flag of the test in the addition.
As per request the assembly:
.globl...
Regular expression to match standard 10 digit phone number
I want to write a regular expression for a standard US type phone number that supports the following formats:
20 Answers
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In Python, what is the difference between “.append()” and “+= []”?
...d will add one item to the list, while += will copy all elements of right-hand-side list into the left-hand-side list.
Update: perf analysis
Comparing bytecodes we can assume that append version wastes cycles in LOAD_ATTR + CALL_FUNCTION, and += version -- in BUILD_LIST. Apparently BUILD_LIST outw...
How do I specify a pointer to an overloaded function?
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@BenVoigt Hmm, I tested this on vs2010 and couldn't find a case where the static_cast wouldn't catch the problem at compile time. It gave a C2440 with "None of the functions with this name in scope match the target type". Can you clarify?
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Javascript seconds to minutes and seconds
...seconds by 60 (60 seconds/minute):
var minutes = Math.floor(time / 60);
And to get the remaining seconds, multiply the full minutes with 60 and subtract from the total seconds:
var seconds = time - minutes * 60;
Now if you also want to get the full hours too, divide the number of total seconds...