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get just the integer from wc in bash
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You can use the cut command to get just the first word of wc's output (which is the line or word count):
lines=`wc -l $f | cut -f1 -d' '`
words=`wc -w $f | cut -f1 -d' '`
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Break parallel.foreach?
...e<...> before the one that invokes state.Break() are being processed and those coming after it are not? Although the former could be achieved somehow, I don't see how the latter would be possible at all.
– Hendrik Wiese
Mar 14 '13 at 12:29
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Error while installing json gem 'mkmf.rb can't find header files for ruby'
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For Xcode 11 on macOS 10.14, this can happen even after installing Xcode and installing command-line tools and accepting the license with
sudo xcode-select --install
sudo xcodebuild -license accept
The issue is that Xcode 11 ships the macOS 10.15 SDK which includes headers for ruby2.6, but no...
relative path in require_once doesn't work
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Use
__DIR__
to get the current path of the script and this should fix your problem.
So:
require_once(__DIR__.'/../class/user.php');
This will prevent cases where you can run a PHP script from a different folder and therefore the relatives paths will not work.
Edit: sla...
Remove duplicates from an array of objects in JavaScript
...alculating it on every iteration. Assign it to a variable outside the loop and pass the variable instead of the things.thing.length.
– 0v3rth3d4wn
Aug 26 '14 at 12:56
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Rebuild IntelliJ project indexes
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File -> Invalidate caches...
(Force rebuild of all caches and indices on next startup)
Restart IntelliJ IDEA.
Caution: This might Remove local history.
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matplotlib.pyplot will not forget previous plots - how can I flush/refresh?
...after every plt.show() to just clear the current figure instead of closing and reopening it, keeping the window size and giving you a better performance and much better memory usage.
Similarly, you could do plt.cla() to just clear the current axes.
To clear a specific axes, useful when you have mu...
How to get a URL parameter in Express?
...hich version of express are you using? I just tested this on express-3.4.4 and it works fine.
– maček
Nov 20 '13 at 7:20
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UnicodeDecodeError: 'ascii' codec can't decode byte 0xd1 in position 2: ordinal not in range(128)
I am attempting to work with a very large dataset that has some non-standard characters in it. I need to use unicode, as per the job specs, but I am baffled. (And quite possibly doing it all wrong.)
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How to write an XPath query to match two attributes?
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//div[@id='..' and @class='...]
should do the trick. That's selecting the div operators that have both attributes of the required value.
It's worth using one of the online XPath testbeds to try stuff out.
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