大约有 700 项符合查询结果(耗时:0.0191秒) [XML]
Why is it necessary to set the prototype constructor?
...classing something that uses it (like Promise or Array) and not using class¹ (which handles this for you), you'll want to make sure you set it correctly. So basically: It's a good idea.
It's okay if nothing in your code (or library code you use) uses it. I've always ensured it was correctly wired ...
What are the downsides to using Dependency Injection? [closed]
... answered Mar 9 '10 at 8:34
Håvard SHåvard S
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...
What is the difference between encode/decode?
... encoding. Use u'...'.encode(encoding).
Example:
>>> u'æøå'.encode('utf8')
'\xc3\x83\xc2\xa6\xc3\x83\xc2\xb8\xc3\x83\xc2\xa5'
>>> u'æøå'.encode('latin1')
'\xc3\xa6\xc3\xb8\xc3\xa5'
>>> u'æøå'.encode('ascii')
UnicodeEncodeError: 'ascii' c...
Extracting extension from filename in Python
Is there a function to extract the extension from a filename?
24 Answers
24
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Sum a list of numbers in Python
... sum(i for i in a) is just redundant.
– Jean-François Fabre♦
Apr 18 '18 at 13:37
7
sum(Dec...
How can I remove non-ASCII characters but leave periods and spaces using Python?
...ignore all symbols that are not supported. For example, the Swedish letter å is not an ASCII character:
>>>s = u'Good bye in Swedish is Hej d\xe5'
>>>s = s.encode('ascii',errors='ignore')
>>>print s
Good bye in Swedish is Hej d
Edit:
Python3: str ->...
When should I create a destructor?
...ed Feb 4 '11 at 13:58
Øyvind BråthenØyvind Bråthen
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...
Pickle or json?
... answered Feb 13 '10 at 22:22
Håvard SHåvard S
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...
Java 8 Streams: multiple filters vs. complex condition
...le filter but that’s only relevant for rather computational intense tasks¹.
So there is no simple answer.
The bottom line is, don’t think about such performance differences below the odor detection threshold. Use what is more readable.
¹…and would require an implementation doing paralle...
Convert a Python list with strings all to lowercase or uppercase
...3, map wins the race, but does nothing :)
– Jean-François Fabre♦
Mar 7 '18 at 19:22
@NedDeily map(str.lower,["A","B...