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Determine whether an array contains a value [duplicate]
I need to determine if a value exists in an array.
18 Answers
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How do I change Eclipse to use spaces instead of tabs?
By default Eclipse indents with a hard tab character. How do I change it to spaces?
21 Answers
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Is there a performance gain in using single quotes vs double quotes in ruby?
Do you know if using double quotes instead of single quotes in ruby decreases performance in any meaningful way in ruby 1.8 and 1.9.
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Concatenating two lists - difference between '+=' and extend()
I've seen there are actually two (maybe more) ways to concatenate lists in Python:
One way is to use the extend() method:
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Combine two data frames by rows (rbind) when they have different sets of columns
Is it possible to row bind two data frames that don't have the same set of columns? I am hoping to retain the columns that do not match after the bind.
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Regex - how to match everything except a particular pattern
How do I write a regex to match any string that doesn't meet a particular pattern? I'm faced with a situation where I have to match an (A and ~B) pattern.
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Add column with constant value to pandas dataframe [duplicate]
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The reason this puts NaN into a column is because df.index and the Index of your right-hand-side object are different. @zach shows the proper way to assign a new column of zeros. In general, pandas tries to do as much alignment of indices as possible...
Is there any way to check if iOS app is in background?
I want to check if the app is running in the background.
8 Answers
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What is size_t in C?
I am getting confused with size_t in C. I know that it is returned by the sizeof operator. But what exactly is it? Is it a data type?
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Removing item from vector, while in C++11 range 'for' loop?
I have a vector of IInventory*, and I am looping through the list using C++11 range for, to do stuff with each one.
12 Answ...