大约有 19,606 项符合查询结果（耗时：0.0270秒） [XML]
How can I shrink the drawable on a button?
...
If you set the drawable in code, you can resize it based on the button height and then set it.
– Ronnie
Sep 24 '11 at 12:48
...
Is there a way to make mv create the directory to be moved to if it doesn't exist?
...
[ -a "$dir" ] ||
mkdir -p "$dir" &&
mv "$@"
}
These based on the submission of Chris Lutz.
share
|
improve this answer
|
follow
|
...
How do I check if a C++ std::string starts with a certain string, and convert a substring to an int?
...ewhere mentioning either "find" or "rfind" optimization is common practice based on the return value it's checking against.
– Superziyi
Mar 26 '19 at 18:49
3
...
Plot two graphs in same plot in R
... the add parameter works for some plot methods, but not the base/default one in R
– cloudscomputes
Oct 12 '17 at 6:40
2
...
JavaScript for…in vs for
...
The choice should be based on the which idiom is best understood.
An array is iterated using:
for (var i = 0; i < a.length; i++)
//do stuff with a[i]
An object being used as an associative array is iterated using:
for (var key in o)
...
How do I get the MIN() of two fields in Postgres?
...ST are not in the SQL standard, but are a common extension. Some other databases make them return NULL if any argument is NULL, rather than only when all are NULL...
share
|
improve this answer
...
Is there a way to use two CSS3 box shadows on one element?
... for help, clarification, or responding to other answers.Making statements based on opinion; back them up with references or personal experience.To learn more, see our tips on writing great answers.
Draft saved
Draft discarded
...
PostgreSQL DISTINCT ON with different ORDER BY
...sed_at
ORDER BY t1.purchased_at DESC
A more PostgreSQL-oriented solution based on @hkf's answer:
SELECT * FROM (
SELECT DISTINCT ON (address_id) *
FROM purchases
WHERE product_id = 1
ORDER BY address_id, purchased_at DESC
) t
ORDER BY purchased_at DESC
Problem clarified, extended and s...
How to assert output with nosetest/unittest in python?
...rom StringIO import StringIO in Python 3. Here's a minimum working snippet based on @naxa's comment and the Python Cookbook.
from io import StringIO
from unittest.mock import patch
with patch('sys.stdout', new=StringIO()) as fakeOutput:
print('hello world')
self.assertEqual(fakeOutput.getv...
Select second last element with css
... for help, clarification, or responding to other answers.Making statements based on opinion; back them up with references or personal experience.To learn more, see our tips on writing great answers.
Draft saved
Draft discarded
...