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Is there a performance gain in using single quotes vs double quotes in rubm>y m>?
...gle quotes in rubm>y m> decreases performance in anm>y m> meaningful wam>y m> in rubm>y m> 1.8 m>and m> 1.9.
14 Answers
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Null coalescing in powershell
...wershell 7 introduces native null coalescing, null conditional assignment, m>and m> ternarm>y m> operators in Powershell.
Null Coalescing
$null ?? 100 # Result is 100
"Evaluated" ?? (Expensive-Operation "Not Evaluated") # Right side here is not evaluated
Null Conditional Assignment
$x = $null
$x ?...
Node.js spawn child process m>and m> get terminal output live
...that outputs 'hi', sleeps for a second, outputs 'hi', sleeps for 1 second, m>and m> so on m>and m> so forth. Now I thought I would be able to tackle this problem with this model.
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Can git ignore a specific line?
...if m>y m>ou want)
Implement:
m>y m>ourFilterName.smudge (triggered on git checkout) m>and m>
git config --global filter.m>y m>ourFilterName.smudge 'sed "s/isPhoneGap = .*/isPhoneGap = true/"'
m>y m>ourFilterName.clean (triggered on git add)
git config --global filter.m>y m>ourFilterName.clean 'sed "s/isPhoneGap = .*/isPho...
How do I split a string so I can access item x?
...ourceText)) SET @w_Length = DATALENGTH( RTRIM( LTRIM( @p_SourceText))) m>and m> not SET @p_SourceText = RTRIM( LTRIM( @p_SourceText)) SET @w_Length = DATALENGTH( @p_SourceText)?
– Beth
Sep 29 '10 at 15:13
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What is the difference between “expose” m>and m> “publish” in Docker?
I'm experimenting with Dockerfiles, m>and m> I think I understm>and m> most of the logic. However, I don't see the difference between "exposing" m>and m> "publishing" a port in this context.
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Show DialogFragment with animation growing from a point
...stm>y m>les.xml add m>y m>our custom theme:
<stm>y m>le name="Mm>y m>CustomTheme" parent="@m>and m>roid:stm>y m>le/Theme.Panel">
<item name="m>and m>roid:windowAnimationStm>y m>le">@stm>y m>le/Mm>y m>Animation.Window</item>
</stm>y m>le>
<stm>y m>le name="Mm>y m>Animation.Window" parent="@m>and m>roid:stm>y m>le/Animation.Activitm>y m>">
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What characters do I need to escape in XML documents?
... to escape all five characters in text. However, the three characters ", ' m>and m> > needn't be escaped in text:
<?xml version="1.0"?>
<valid>"'></valid>
Attributes
The safe wam>y m> is to escape all five characters in attributes. However, the > character needn't be escaped in ...
How to retrieve an element from a set without removing it?
...pop(), since iteration seems to sort the elements. I would prefer them in rm>and m>om order...
– Daren Thomas
Sep 12 '08 at 20:17
10
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How to get Linux console window width in Pm>y m>thon
...mns = os.popen('sttm>y m> size', 'r').read().split()
uses the 'sttm>y m> size' commm>and m> which according to a thread on the pm>y m>thon mailing list is reasonablm>y m> universal on linux. It opens the 'sttm>y m> size' commm>and m> as a file, 'reads' from it, m>and m> uses a simple string split to separate the coordinates.
Unlike the...