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How do I add the contents of an iterable to a set?
...er but not both. But in a dynamically typed language where it's sometimes difficult to read the code and know the types of objects flying around, I feel hesitant to use these operators. Someone who doesn't recognize them (or perhaps doesn't even realize that Python allows for operators like these) c...
Can I replace groups in Java regex?
I have this code, and I want to know, if I can replace only groups (not all pattern) in Java regex.
Code:
7 Answers
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What does the constant 0.0039215689 represent?
...y the reciprocal is faster than repeatedly dividing by 255.
Side Note:
If you're wondering why such a micro-optimization isn't left to the compiler, it's because it is an unsafe floating-point optimization. In other words:
x / 255 != x * (1. / 255)
due to floating-point round-off errors.
S...
How does one write code that best utilizes the CPU cache to improve performance?
... could sound like a subjective question, but what I am looking for are specific instances, which you could have encountered related to this.
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How to revert a folder to a particular commit by creating a patch
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You can use git checkout to update your repository to a specific state.
git checkout e095 -- somefolder
As for your question about generating the diff, that would work too. Just generate the diff to go from your current state back to e095:
git diff 89cd..e095 -- somefolder
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Replace whitespaces with tabs in linux
... cool that these are standard. I love the UNIX philosophy. Would be nice if it could do in place though.
– Matthew Flaschen
Nov 14 '13 at 3:26
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What's the difference setting Embed Interop Types true and false in Visual Studio?
...n Embed Inteop Types , should we set it to True or False ? What's the difference?
2 Answers
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How do you allow spaces to be entered using scanf?
...ection, unless you know for certain that the input will always be of a specific format (and perhaps not even then).
Remember than scanf stands for "scan formatted" and there's precious little less formatted than user-entered data. It's ideal if you have total control of the input data format but ge...
How to convert java.sql.timestamp to LocalDate (java8) java.time?
...Usually when using only java8 date classes the programmer is forced to specify a timezone which is a good thing.
The good solution is
timestamp.toInstant().atZone(zoneId).toLocalDate()
Where zoneId is the timezone you want to use which is typically either ZoneId.systemDefault() if you want to us...
Internet Explorer's CSS rules limits
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just for clarification: would the following line count as one "selector", or two? div.oneclass, div.anotherstyle {color: green};
– anthony
Nov 5 '13 at 15:44
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