大约有 46,000 项符合查询结果（耗时：0.0466秒） [XML]
best way to get the key of a key/value javascript object
...
You can now use spread operator for this purpose, it looks better: const [firstKey, ...rest] = Object.keys(obj);
– Nerlin
Dec 13 '17 at 21:08
...
Escape a string for a sed replace pattern
...PED_REPLACE=$(printf '%s\n' "$REPLACE" | sed -e 's/[\/&]/\\&/g')
# Now you can use ESCAPED_REPLACE in the original sed statement
sed "s/KEYWORD/$ESCAPED_REPLACE/g"
If you ever need to escape the KEYWORD string, the following is the one you need:
sed -e 's/[]\/$*.^[]/\\&/g'
And can be...
Asserting successive calls to a mock method
.....: hd2 = HeavyDuty()
...: hd2.do_work(23, 29)
...:
Now, here is a test case for the heavy_work function:
In [3]: from unittest.mock import patch, call
...: def test_heavy_work():
...: expected_calls = [call.do_work(13, 17),call.do_work(23, 29)]
...:
...:...
What version of Visual Studio is Python on my computer compiled with?
...obscure, lesson 1! Thanks this though Drorhan, it's definitely a "nice to know"!
– dm76
Apr 20 '10 at 16:37
A little l...
How do I get the directory that a program is running from?
...
I know it is very late at the day to throw an answer at this one but I found that none of the answers were as useful to me as my own solution. A very simple way to get the path from your CWD to your bin folder is like this:
int...
Detect when browser receives file download
...
old thread, i know...
but those, that are lead here by google might be interested in my solution.
it is very simple, yet reliable. and it makes it possible to display real progress messages (and can be easily plugged in to existing process...
Wrapping a C library in Python: C, Cython or ctypes?
...hen calling the native functions.
One thing to note is that ctypes won't know about #define constants and stuff in the library you're using, only the functions, so you'll have to redefine those constants in your own code.
Here's an example of how the code ended up looking (lots snipped out, just t...
What is a C++ delegate?
...l a sad testimoney on how C++ evolves.
Only rarely is it pointed out, that now over 3 C++ standard revisions, delegates were not properly addressed. (Or the lack of language features which allow for straightforward delegate implementations.)
With the way C++11 lambda functions are defined by the sta...
What is INSTALL_PARSE_FAILED_NO_CERTIFICATES error?
...
I found that this error can now also occur when using the wrong signing config. As described here, Android 7.0 introduces a new signature scheme, V2. The V2 scheme signs the entire APK rather than just the JAR, as is done in the V1 scheme. If you sign...
PDO support for multiple queries (PDO_MYSQL, PDO_MYSQLND)
I do know that PDO does not support multiple queries getting executed in one statement. I've been Googleing and found few posts talking about PDO_MYSQL and PDO_MYSQLND.
...