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Test whether string is a valid integer
I'm trying to do something common enough: Parse user input in a shell script. If the user provided a valid integer, the script does one thing, and if not valid, it does something else. Trouble is, I haven't found an easy (and reasonably elegant) way of doing this - I don't want to have to pick it ap...
MySQL Update Inner Join tables query
I have no idea what the problem is. Using MySQL 5.0 I get a compile error when attempting to run the following MySQL update query:
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Check if a number has a decimal place/is a whole number
I am looking for an easy way in JavaScript to check if a number has a decimal place in it (in order to determine if it is an integer). For instance,
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After array_filter(), how can I reset the keys to go in numerical order starting at 0
I just used array_filter to remove 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 j...
Remove duplicate values from JS array [duplicate]
I have a very simple JavaScript array that may or may not contain duplicates.
54 Answers
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Concatenating two one-dimensional NumPy arrays
I have two simple one-dimensional arrays in NumPy . I should be able to concatenate them using numpy.concatenate . But I get this error for the code below:
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No provider for “framework:jasmine”! (Resolving: framework:jasmine)
When I run the command grunt I get the following warning:
6 Answers
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Finding the max value of an attribute in an array of objects
I'm looking for a really quick, clean and efficient way to get the max "y" value in the following JSON slice:
13 Answers
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Check whether number is even or odd
How would I determine whether a given number is even or odd? I've been wanting to figure this out for a long time now and haven't gotten anywhere.
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What does value & 0xff do in Java?
I have the following Java code:
4 Answers
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