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Best way to replace multiple characters in a string?
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Replacing two characters
I timed all the methods in the current 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: te...
NOW() function in PHP
Is there a PHP function that returns the date and time in the same format as the MySQL function NOW() ?
20 Answers
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Command to get time in milliseconds
Is there a shell command in Linux to get the time in milliseconds?
12 Answers
12
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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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How to change time in DateTime?
How can I change only the time in my DateTime variable "s"?
28 Answers
28
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How to convert a unix timestamp (seconds since epoch) to Ruby DateTime?
How do you convert a Unix timestamp (seconds since epoch) to Ruby DateTime?
6 Answers
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How can I quickly sum all numbers in a file?
...cause I was hoping using mmap would be really fast, but it's just the same time:
use 5.010;
use File::Map qw(map_file);
map_file my $map, $ARGV[0];
$sum += $1 while $map =~ m/(\d+)/g;
say $sum;
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Tools for analyzing performance of a Haskell program
...so slow. Are there any commands that tell me where most of the computation-time is spend so I know which part of my haskell-program is slow?
Precisely! GHC provides many excellent tools, including:
runtime statistics
time profiling
heap profiling
thread analysis
core analysis.
comparative benchm...
Javascript seconds to minutes and seconds
...mber of total 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...
How to convert local time string to UTC?
How do I convert a datetime string in local time to a string in UTC time ?
21 Answers
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