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How do I get elapsed time in milliseconds in Ruby?
...time_diff_milli(start, finish)
(finish - start) * 1000.0
end
t1 = Time.now
# arbitrary elapsed time
t2 = Time.now
msecs = time_diff_milli t1, t2
You will need to decide whether to truncate that or not.
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How to convert DateTime to VarChar
...are 2 bytes of overhead involved in VARCHAR vs CHAR. In this scenario, we know that your string will always be 10 characters, so CHAR is appropriate.
– Will Ediger
Dec 30 '14 at 23:04
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make an html svg object also a clickable link
... A drawback of this solution (and the one from noelmcg as well) is if your SVG file contains CSS rules with a :hover selector, these rules will stop working. The solution proposed by Ben Frain doesn't have this problem.
– MathieuLescure
Apr 14 '15 at 15...
Globally override key binding in Emacs
...r-mode 1)
This has the added benefit of being able to turn off all my modifications in one fell swoop (just disable the minor mode) in case someone else is driving the keyboard or if I need to see what a default key binding does.
Note that you may need to turn this off in the minibuffer:
(defun ...
Is there any way to see the file system on the iOS simulator?
...nning or just killed iOS simulator? I'd settle for being able to see a specific app's files if there's a way to do that.
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How to create a CPU spike with a bash command
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You can also do
dd if=/dev/zero of=/dev/null
To run more of those to put load on more cores, try to fork it:
fulload() { dd if=/dev/zero of=/dev/null | dd if=/dev/zero of=/dev/null | dd if=/dev/zero of=/dev/null | dd if=/dev/zero of=/dev/nu...
Difference between 2 dates in SQLite
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SELECT julianday('now') - julianday(DateCreated) FROM Payment;
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Remove padding from columns in Bootstrap 3
... </div>
</div>
</div>
</div>
if you really wanted to remove the padding/margins, add a class to filter out the margins/paddings for each child column.
.nopadding {
padding: 0 !important;
margin: 0 !important;
}
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Bash command to sum a column of numbers [duplicate]
...not supported by Mac OS X 10.7.4 paste. However, since the POSIX 2008 specification of paste supports -s, this is a deficiency in the Mac OS X version.
– Jonathan Leffler
Aug 15 '12 at 18:56
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jQuery ID starts with
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A word of warning: this selector doesn't work if the 'value' is an HTML element, as I found out the hard way when my IDs for list items all started with 'li'. The solution was to start them with 'li_'
– Tim Dawson
Jun 28 at 12:37
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