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How do you convert a byte array to a hexadecimal string, and vice versa?
How can you convert a byte array to a hexadecimal string, and vice versa?
45 Answers
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Paging UICollectionView by cells, not screen
I have UICollectionView with horizontal scrolling and there are always 2 cells side-by-side per the entire screen. I need the scrolling to stop at the begining of a cell. With paging enabled, the collection view scrolls the whole page, which is 2 cells at once, and then it stops.
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Add single element to array in numpy
I have a numpy array containing:
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How to make rounded percentages add up to 100%
Consider the four percentages below, represented as float numbers:
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Does opacity:0 have exactly the same effect as visibility:hidden
If so, does it effectively deprecate the visibility property?
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How to get the first element of an array?
How do you get the first element from an array like this:
31 Answers
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jQuery : eq() vs get()
I'm new to jQuery, and I'm wondering what the difference is between jQuery's get() and eq() functions. I may misunderstand what the get() function does, but I thought it odd that I couldn't call a function on the returned on the returned element in the same line.
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Prevent body scrolling but allow overlay scrolling
I've been searching for a "lightbox" type solution that allows this but haven't found one yet (please, suggest if you know of any).
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What's the algorithm to calculate aspect ratio?
I plan to use it with JavaScript to crop an image to fit the entire window.
18 Answers
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Why #define TRUE (1==1) in a C boolean macro instead of simply as 1?
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