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How do I convert seconds to hours, minutes and seconds?
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Capturing Groups From a Grep RegEx
...egex (and the one using grep) will match any of the following examples and more, which may not be what you're looking for:
123_abc_d4e5
xyz123_abc_d4e5
123_abc_d4e5.xyz
xyz123_abc_d4e5.xyz
To eliminate the second and fourth examples, make your regex like this:
^[0-9]+_([a-z]+)_[0-9a-z]*
which ...
Timing a command's execution in PowerShell
... or measure-command, or just comparing two get-date vars... (I mean what's more efficient to keep permanently in a script?)
– Hicsy
Sep 20 '17 at 4:00
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In practice, what are the main uses for the new “yield from” syntax in Python 3.3?
... a generator (coroutine) using yield from - Part 1
Now let's do something more interesting. Let's create a coroutine called writer that accepts data sent to it and writes to a socket, fd, etc.
def writer():
"""A coroutine that writes data *sent* to it to fd, socket, etc."""
while True:
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Error in exception handler. - Laravel
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What is the difference between D3 and jQuery?
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nice, one example is worth more than a 1000 words
– TMG
Mar 2 '16 at 22:07
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How to generate a random alpha-numeric string?
...nique over 500K+ generation (my needs don't really require anything much more sophisticated).
42 Answers
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Rails DB Migration - How To Drop a Table?
...ion here:
http://api.rubyonrails.org/classes/ActiveRecord/Migration.html
More specifically, you can see how to drop a table using the following approach:
drop_table :table_name
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Best way to store time (hh:mm) in a database
...components of the date, but what's the best way to do this without storing more info than I actually need?
15 Answers
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What's the most efficient test of whether a PHP string ends with another string?
...rumley's answer is cool, but it should use '===' instead of '=='. '===' is more strict and usually does what you want, while '==' can lead to nasty surprises. mcrumley's third code snippet is correct, but the first two aren't. substr_compare() returns false in some error cases. In PHP, false == 0, s...