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Why does Java switch on contiguous ints appear to run faster with added cases?
I am working on some Java code which needs to be highly optimized as it will run in hot functions that are invoked at many points in my main program logic. Part of this code involves multiplying double variables by 10 raised to arbitrary non-negative int exponent s. One fast way (edit: but no...
Commonly accepted best practices around code organization in JavaScript [closed]
As JavaScript frameworks like jQuery make client side web applications richer and more functional, I've started to notice one problem...
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Use CSS3 transitions with gradient backgrounds
...ansition on hover with css over a thumbnail so that on hover, the background gradient fades in. The transition isn't working, but if I simply change it to an rgba() value, it works fine. Are gradients not supported? I tried using an image too, it won't transition the image either.
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How to automatically generate N “distinct” colors?
I wrote the two methods below to automatically select N distinct colors. It works by defining a piecewise linear function on the RGB cube. The benefit of this is you can also get a progressive scale if that's what you want, but when N gets large the colors can start to look similar. I can also imagi...
PHP & mySQL: Year 2038 Bug: What is it? How to solve it?
I was thinking of using TIMESTAMP to store the date+time, but I read that there is a limitation of year 2038 on it. Instead of asking my question in bulk, I preferred to break it up into small parts so that it is easy for novice users to understand as well. So my question(s):
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Calling C++ class methods via a function pointer
How do I obtain a function pointer for a class member function, and later call that member function with a specific object? I’d like to write:
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Find MongoDB records where array field is not empty
All of my records have a field called "pictures". This field is an array of strings.
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Virtual/pure virtual explained
What exactly does it mean if a function is defined as virtual and is that the same as pure virtual?
12 Answers
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