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If vs. Switch Speed
Switch statements are typically faster than equivalent if-else-if statements (as e.g. descibed in this article ) due to compiler optimizations.
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Why does Math.round(0.49999999999999994) return 1?
In the following program you can see that each value slightly less than .5 is rounded down, except for 0.5 .
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How to make an element in XML schema optional?
So I got this XML schema:
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lua和c/c++互相调用实例分析 - C/C++ - 清泛网 - 专注C/C++及内核技术
lua和c/c++互相调用实例分析lua作为小巧精悍的脚本语言，易于嵌入c c++中 ， 广泛应用于游戏AI ，实际上在任何经常变化的逻辑上都可以使用lua实现，配合c c++实现的...lua作为小巧精悍的脚本语言，易于嵌入c/c++中 ， 广泛应用于游...
MySQL - ORDER BY values within IN()
...rned in the following query by the order they're entered into the IN() function .
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Regex how to match an optional character
I have a regex that I thought was working correctly until now. I need to match on an optional character. It may be there or it may not.
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Format number to 2 decimal places
I would like to know how can I output a number with 2 decimal places, without rounding the original number.
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How to initialize all members of an array to the same value in Swift?
...rray in Swift. I want to initialize all members to the same value (i.e. it could be zero or some other value). What would be the best approach?
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After array_filter(), how can I reset the keys to go in numerical order starting at 0
... entries that had only the value '' from an array, and now I want to apply certain transformations on it depending on the placeholder starting from 0, but unfortunately it still retains the original index. I looked for a while and couldn't see anything, perhaps I just missed the obvious, but my que...
Assign pandas dataframe column dtypes
I want to set the dtype s of multiple columns in pd.Dataframe (I have a file that I've had to manually parse into a list of lists, as the file was not amenable for pd.read_csv )
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