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How do I pass an extra parameter to the callback function in Javascript .filter() method?
...g why their fat arrow function is ignoring [, thisArg], e.g. why
["DOG", "CAT", "DOG"].filter(animal => animal === this, "DOG")
returns []
it's because this inside those arrow functions are bound when the function is created and are set to the value of this in the broader encompassing scope, so...
What does 'predicate' mean in the context of computer science? [duplicate]
...cifically I've seen it used in the context of text filtering. As if "predicate" == "filter criteria".
7 Answers
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How can I read command line parameters from an R script?
...d Apr 27 '15 at 13:10
The Unfun Cat
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answered Jan 28 '10 at 12:52
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How can I plot separate Pandas DataFrames as subplots?
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You may not need to use Pandas at all. Here's a matplotlib plot of cat frequencies:
x = np.linspace(0, 2*np.pi, 400)
y = np.sin(x**2)
f, axes = plt.subplots(2, 1)
for c, i in enumerate(axes):
axes[c].plot(x, y)
axes[c].set_title('cats')
plt.tight_layout()
...
Run cron job only if it isn't already running
...;& (ps -u $(whoami) -opid= |
grep -P "^\s*$(cat ${PIDFILE})$" &> /dev/null); then
echo "Already running."
exit 99
fi
/path/to/myprogram > $HOME/tmp/myprogram.log &
echo $! > "${PIDFILE}"
chmod 644 "${PIDFILE}"
...
Make xargs handle filenames that contain spaces
... +1 + 1 trick for using with file paths containing list files : cat $file_paths_list_file | perl -ne 's|\n|\000|g;print'| xargs -0 zip $zip_package
– Yordan Georgiev
Jun 24 '14 at 13:47
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Catching error codes in a shell pipe
...mp is present on antique HP-UX. I'm not sure whether there's a common invocation of mktemp that works across platforms. POSIX standardizes neither mktemp nor tmpfile. I didn't find tmpfile on the platforms I have access to. Consequently, I won't be able to use the commands in portable shell scripts...
How to copy file from HDFS to the local file system
...w to copy file from HDFS to the local file system . There is no physical location of a file under the file , not even directory . how can i moved them to my local for further validations.i am tried through winscp .
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How to find out how many lines of code there are in an Xcode project?
....pl file using 'chmod u+x cloc-1.56.pl' command. If your source code is located in directory 'project_code' You just need to run following command.
– JZ.
Sep 26 '14 at 3:41
a...
How can I reverse the order of lines in a file?
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Also worth mentioning: tac (the, ahem, reverse of cat). Part of coreutils.
Flipping one file into another
tac a.txt > b.txt
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