大约有 49,000 项符合查询结果(耗时:0.0682秒) [XML]
Why does “return list.sort()” return None, not the list?
...ch of these calls acts on the same
object, and so even if you don't know the class and its methods very
well, you can understand that the second and third call are applied to
x (and that all calls are made for their side-effects), and not to
something else.
I'd like to r...
Is there a documented way to set the iPhone orientation?
...
This is no longer an issue on the later iPhone 3.1.2 SDK. It now appears to honor the requested orientation of the view being pushed back onto the stack. That likely means that you would need to detect older iPhone OS versions and only apply the setOrientation when it is prior to the ...
How do you test that a Python function throws an exception?
...ust alias that as unittest:
import unittest2 as unittest
Example tests
Now, paste into your Python shell the following test of Python's type-safety:
class MyTestCase(unittest.TestCase):
def test_1_cannot_add_int_and_str(self):
with self.assertRaises(TypeError):
1 + '1'
...
How to search and replace text in a file?
...k Aidley's answer, it has been corrected since this answer, so this one is now redundant (and inferior due to losing the neater with blocks).
– Chris
Apr 26 '17 at 20:08
add a...
What does the leading semicolon in JavaScript libraries do?
...
@jvenema I don't know why you think that makes a difference.
– Vladimir Kornea
Feb 16 '16 at 16:28
6
...
Import Error: No module named numpy
...k as they defaulted the installation to python 3's package folders (for unknown reasons). I used pip2 install numpy to resolve the errors for "no module found...".
– Arshin
Sep 3 '18 at 7:11
...
How to merge two arrays in JavaScript and de-duplicate items
...ternet Explorer Technical Preview.
But if you use Babel, you can have it now.
const input = [
[1, 2, 3],
[101, 2, 1, 10],
[2, 1]
];
const mergeDedupe = (arr) => {
return [...new Set([].concat(...arr))];
}
console.log('output', mergeDedupe(input));
...
Prevent “overscrolling” of web page
...d Opera 50+ support it. Edge publically supported it while Safari is an unknown. Track progress here and current browser compatibility at MDN documentation
More information
Chrome 63 release video
Chrome 63 release post - contains links and details to everything I wrote above.
overscroll-behavior...
Base64 Java encode and decode a string [duplicate]
...
Java 8 now supports BASE64 Encoding and Decoding. You can use the following classes:
java.util.Base64, java.util.Base64.Encoder and java.util.Base64.Decoder.
Example usage:
// encode with padding
String encoded = Base64.getEncoder...
How to compare a local git branch with its remote branch?
...what my push will do to remote repo.
– Michał Tatarynowicz
Aug 12 '13 at 12:51
78
...
