大约有 36,000 项符合查询结果（耗时：0.0184秒） [XML]
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
...
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...
How can I read command line parameters from an R script?
...d Apr 27 '15 at 13:10
The Unfun Cat
20.5k2222 gold badges8686 silver badges114114 bronze badges
answered Jan 28 '10 at 12:52
...
How can I plot separate Pandas DataFrames as subplots?
...
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
...
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 .
...
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 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...
Postgres DB Size Command
...p 20 '13 at 0:39
Mike Sherrill 'Cat Recall'Mike Sherrill 'Cat Recall'
78.4k1616 gold badges103103 silver badges156156 bronze badges
...