大约有 40,000 项符合查询结果（耗时：0.0563秒） [XML]
What are the differences between Rust's `String` and `str`?
...tr most commonly2 appears as &str: a reference to some UTF-8 data, normally called a "string slice" or just a "slice". A slice is just a view onto some data, and that data can be anywhere, e.g.
In static storage: a string literal "foo" is a &'static str. The data is hardcoded into the execu...
How to set dialog to show in full screen? [closed]
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Call requires API level 11
– Luis A. Florit
Jun 15 '13 at 4:14
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How to sort a dataframe by multiple column(s)
...as speedy as the base R commands with their convoluted machinations. Typically brilliant Hadley Wickham work. My only gripe with it is that it breaks the standard R nomenclature where sorting objects get called by sort(object), but I understand why Hadley did it that way due to issues discussed in...
Using an ORM or plain SQL? [closed]
...d ORMs in python like SQLAlchemy , I didn't stick with them for long. Usually it was either the documentation or complexity (from my point of view) holding me back.
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converting CSV/XLS to JSON? [closed]
...l I made:
Mr. Data Converter
It converts to JSON, XML and others.
It's all client side, too, so your data never leaves your computer.
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Get a UTC timestamp [duplicate]
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thanks for the clarifications Aprillion! Finally I understand why people keep saying new Date().getTime() or Date.now() is UTC but when I try console.log(new Date()), it displays time in my timezone. The Date internally has the timestamp (milliseconds) in UTC (w/c is w...
Xcode stuck on Indexing
...zer
Close/re-open Xcode
Nuking Derived Data is the first thing to try in all cases of Xcode misbehaving
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Interactive search/replace regex in Vim?
...confirm options. Screenshot below:
For instance, to substitute this and all remaining matches, use a.
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How to convert int to char with leading zeros?
...ear, so I no longer have the original test. I just run another test on a really fast server, and got 32 seconds to format 1 million numbers. Not the end of the world, but solution posted by Nguyen Tran does it in 1 second. To test simply create a loop from @i int = 0 to 10000000.
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SQLAlchemy ORDER BY DESCENDING?
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This is a potentially brittle workaround where a workaround is not needed.
– BlueBomber
Jun 25 '13 at 14:41
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