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What's the difference between a proc and a lambda in Ruby?
And when would you use one rather than the other?
8 Answers
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Why is a round-trip conversion via a string not safe for a double?
Recently I have had to serialize a double into text, and then get it back. The value seems to not be equivalent:
3 Answers
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How to remove multiple indexes from a list at the same time? [duplicate]
Say I have this list here:
8 Answers
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How do I pass a unique_ptr argument to a constructor or a function?
I'm new to move semantics in C++11 and I don't know very well how to handle unique_ptr parameters in constructors or functions. Consider this class referencing itself:
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How to recover a dropped stash in Git?
I frequently use git stash and git stash pop to save and restore changes in my working tree. Yesterday I had some changes in my working tree that I had stashed and popped, and then I made more changes to my working tree. I'd like to go back and review yesterday's stashed changes, but git stash ...
How to get maximum value from the Collection (for example ArrayList)?
There is an ArrayList which stores integer values. I need to find the maximum value in this list. E.g. suppose the arrayList stored values are : 10, 20, 30, 40, 50 and the max
value would be 50 .
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Omit rows containing specific column of NA
I want to know how to omit NA values in a data frame, but only in some columns I am interested in.
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What really happens in a try { return x; } finally { x = null; } statement?
I saw this tip in another question and was wondering if someone could explain to me how on earth this works?
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Downloading a Google font and setting up an offline site that uses it
I have a template and it has a reference to a Google font like this:
11 Answers
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