大约有 47,000 项符合查询结果（耗时：0.0657秒） [XML]
Functional programming - is immutability expensive? [closed]
...arify some points.
The “in-place” quicksort isn’t really in-place (and quicksort is not by definition in-place). It requires additional storage in the form of stack space for the recursive step, which is in the order of O(log n) in the best case, but O(n) in the worst case.
Implementing a fu...
Looking for ALT+LeftArrowKey solution in zsh
...recently switched from bash to zsh, however I miss my Alt + LeftArrowKey and Alt + RightArrowKey to go back and forth a word at a time.
...
Remove unwanted parts from strings in a column
...a number such as the number 12? If I do x.lstrip('12') it takes out all 1 and 2s.
– Dave
Oct 26 '16 at 21:19
add a comment
|
...
Linux: compute a single hash for a given folder & contents?
...
If there is a whole directory tree, you're probably better off using find and xargs. One possible command would be
find path/to/folder -type f -print0 | sort -z | xargs -0 sha1sum | sha1sum
And, finally, if you also need to take account of permissions and empty directories:
(find path/to/folde...
Convert columns to string in Pandas
...e looking for the to_json function, which will convert keys to valid json (and therefore your keys to strings):
In [11]: df = pd.DataFrame([['A', 2], ['A', 4], ['B', 6]])
In [12]: df.to_json()
Out[12]: '{"0":{"0":"A","1":"A","2":"B"},"1":{"0":2,"1":4,"2":6}}'
In [13]: df[0].to_json()
Out[13]: '{"...
How do streaming resources fit within the RESTful paradigm?
With a RESTful service you can create, read, update, and delete resources. This all works well when you're dealing with something like a database assets - but how does this translate to streaming data? (Or does it?) For instance, in the case of video, it seems silly to treat each frame as resource...
Create a string of variable length, filled with a repeated character
...Java form here: Java - Create a new String instance with specified length and filled with specific character. Best solution?
...
What is Scala's yield?
I understand Ruby and Python's yield. What does Scala's yield do?
9 Answers
9
...
How to get current memory usage in android?
I have used /proc/meminfo and parsed command response.however it result shows that :
11 Answers
...
Why call git branch --unset-upstream to fixup?
...topress is not under any development since 2011, it serves my purpose well and so I haven't thought of changing anything so far.
...