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Change MySQL default character set to UTF-8 in my.cnf?
...cter that doesn't fit in utf8 was stored into the column in which case the info is already lost.
– sam
Apr 9 '19 at 19:06
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Detect 7 inch and 10 inch tablet programmatically
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You can use the DisplayMetrics to get a whole bunch of information about the screen that your app is running on.
First, we create a DisplayMetrics metrics object:
DisplayMetrics metrics = new DisplayMetrics();
getWindowManager().getDefaultDisplay().getMetrics(metrics);
From t...
CSS selector for a checked radio button's label
...ally obviates. Unlike many similarly-hyped posts that purport mind-blowing info, this actually delivers on the claim. Amazing work, thanks so much.
– naughtilus
Sep 6 '17 at 11:15
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Cryptic “Script Error.” reported in Javascript in Chrome and Firefox
...rrent page.
This behavior is intentional, to prevent scripts from leaking information to external domains. For an example of why this is necessary, imagine accidentally visiting evilsite.com, that serves up a page with <script src="yourbank.com/index.html">. (yes, we're pointing that script...
How to remove all debug logging calls before building the release version of an Android app?
...s when we call our Ant release target.
That way, we always have the debug info being output for regular builds and don't have to make any code changes for release builds. ProGuard can also do multiple passes over the bytecode to remove other undesired statements, empty blocks and can automatically...
Why malloc+memset is slower than calloc?
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@Pierreten - I can't find any good info on calloc()-specific optimizations and I don't feel like interpreting libc source code for the OP. Can you look up anything to show that this optimization doesn't exist / doesn't work?
– Chris Lutz
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What is the most effective way for float and double comparison?
... fabs(a - b) < EPSILON;
}
Edit: Christer has added a stack of great info on this topic on a recent blog post. Enjoy.
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Does PHP have threading?
...ltithreading in php but you should use multiprocessing instead.
Backgroud info: threads vs. processes
There is always a bit confusion about the distinction of threads and processes, so i'll shortly describe both:
A thread is a sequence of commands that the CPU will process. The only data it cons...
HSL to RGB color conversion
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Ruby equivalent: rubydoc.info/gems/color/1.8/Color/RGB e.g. Color::HSL.new(40,50,60).to_rgb
– xxjjnn
Apr 18 '16 at 11:40
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What are the effects of exceptions on performance in Java?
... nice. ~70% creating the exception, ~30% throwing it. good info.
– chaqke
May 13 '15 at 19:01
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