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How to find serial number of Android device?
...ected by the ANDROID_ID bug in 2.2.
As far as I've been able to determine, all affected devices have the same ANDROID_ID, which is 9774d56d682e549c. Which is also the same device id reported by the emulator, btw.
Google believes that OEMs have patched the issue for many or most of their devices, bu...
Enumerable.Empty() equivalent for IQueryable
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@Nauman - you actually create an [empty] T array - no new object of T is actually created.
– zastrowm
Feb 20 '14 at 15:56
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How do I obtain the frequencies of each value in an FFT?
...0 / 1024 = 22006.9 Hz
Note that for a real input signal (imaginary parts all zero) the second half of the FFT (bins from N / 2 + 1 to N - 1) contain no useful additional information (they have complex conjugate symmetry with the first N / 2 - 1 bins). The last useful bin (for practical aplications...
How can I create a temp file with a specific extension with .NET?
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Guaranteed to be (statistically) unique:
string fileName = System.IO.Path.GetTempPath() + Guid.NewGuid().ToString() + ".csv";
(To quote from the wiki article on the probabilty of a collision:
...one's annual risk of being hit by a
meteorite i...
How do you fade in/out a background color using jquery?
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If you want to specifically animate the background color of an element, I believe you need to include jQueryUI framework. Then you can do:
$('#myElement').animate({backgroundColor: '#FF0000'}, 'slow');
jQueryUI has some built-in effects that may...
Maximum size of an Array in Javascript
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The maximum length until "it gets sluggish" is totally dependent on your target machine and your actual code, so you'll need to test on that (those) platform(s) to see what is acceptable.
However, the maximum length of an array according to the ECMA-262 5th Edition specific...
Generate unique random numbers between 1 and 100
...mber between 0 (inclusive) and 1 (exclusive). If the Math.random() accidentally returns 0, the Math.ceil(0) is also 0, though the chance is low.
– Qian Chen
Apr 22 '15 at 9:58
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How to get the first non-null value in Java?
... the efficiency reasons that i mentioned above is that an array allocation will happen each time you invoke the var arg version of the method. this could be wasteful for hand-fulls of items, which i suspect will be common usage.
– les2
May 4 '10 at 1...
Access Control Request Headers, is added to header in AJAX request with jQuery
...ctual request; note that the HTTP method is OPTIONS, not POST. It was actually the 'pre-flight' request that the browser makes to determine whether a cross-domain AJAX request should be allowed:
http://www.w3.org/TR/cors/
The Access-Control-Request-Headers header in the pre-flight request include...
Base64 Decoding in iOS 7+
...g(@"%@", base64String); // Zm9v
Decoding
NSData *decodedData = [[NSData alloc] initWithBase64EncodedString:base64String options:0];
NSString *decodedString = [[NSString alloc] initWithData:decodedData encoding:NSUTF8StringEncoding];
NSLog(@"%@", decodedString); // foo
...