大约有 16,000 项符合查询结果（耗时：0.0231秒） [XML]
How to use support FileProvider for sharing content to other apps?
I'm looking for a way to correctly share (not OPEN) an internal file with external application using Android Support library's FileProvider .
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How to pass an array into jQuery .data() attribute
... @John it is documented in the jQuery API - "Every attempt is made to convert the string to a JavaScript value (this includes booleans, numbers, objects, arrays, and null) otherwise it is left as a string."
– Alnitak
May 20 '11 at 12:51
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Preserve line endings
...sed to do some substitution on windows and I noticed that it automatically converts line endings to Unix (\n). Is there an option to tell sed to use Windows line endings (\r\n) or even better to preserve the line endings from the file?
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Do we still need end slashes in HTML5?
...nd-slashes just fine, so there's no harm in leaving it there. Means easier converting backwards to XHTML, if necessary for whatever reason.
– Nightfirecat
Sep 9 '11 at 19:19
4
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What is getattr() exactly and how do I use it?
... I feel this should be the accepted answer. Very clear and to the point.
– yuqli
Jul 31 '19 at 17:43
Am I incor...
Why can I create a class named “var”?
...ot a
reserved word in C#.
so as its not reserved you can use it.
As pointed out in the comments above there is a discussion of the differences as well as a list of the various keywords and contextual keywords added at each version of c# on Eric Lipperts blog
It is interesting to note that sinc...
For each row return the column name of the largest value
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apply converts the data.frame to matrix internally. You may not see a performance difference on these dimensions though.
– Arun
Jul 19 '13 at 0:07
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Are JavaScript strings immutable? Do I need a “string builder” in JavaScript?
...s or boxes around strings. See es5.github.io/#x15.5.2.1 . About how things convert to objects see es5.github.io/#x9.9
– Benjamin Gruenbaum
Feb 21 '14 at 13:43
5
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Get statistics for each group (such as count, mean, etc) using pandas GroupBy?
...ol2
A B 4
C D 3
E F 2
G H 1
dtype: int64
Then let's use .size().reset_index(name='counts') to get the row counts:
In [4]: df.groupby(['col1', 'col2']).size().reset_index(name='counts')
Out[4]:
col1 col2 counts
0 A B 4
1 C D 3
2 ...
What does it mean for a data structure to be “intrusive”?
I've seen the term intrusive used to describe data structures like lists and stacks, but what does it mean?
2 Answers
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