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Java String - See if a string contains only numbers and not letters

...ther solutions, because at least require exception handling. I've run jmh tests and have found that iterating over String using charAt and comparing chars with boundary chars is the fastest way to test if string contains only digits. JMH testing Tests compare performance of Character.isDigit vs P...
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jasmine: Async callback was not invoked within timeout specified by jasmine.DEFAULT_TIMEOUT_INTERVAL

...s function is complete. If you never call it, Jasmine will never know your test is done and will eventually timeout. share | improve this answer | follow | ...
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What actually causes a Stack Overflow error? [duplicate]

...ns a smaller depth before the memory allocated for the stack is exhausted. Test it with a method calling itself with 1 argument, then with 5 for example. – JB Nizet Mar 4 '14 at 22:07 ...
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java get file size efficiently

...with the code below: For runs = 1 and iterations = 1 the URL method is fastest most times followed by channel. I run this with some pause fresh about 10 times. So for one time access, using the URL is the fastest way I can think of: LENGTH sum: 10626, per Iteration: 10626.0 CHANNEL sum: 5535, per...
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What is fastest children() or find() in jQuery?

... For me in all tests with hierarchy nestings between 5 and 20 find() always outperformed children(). (tested in Google Chrome 54) I expected the opposite. So from now on, i'll take the easy way and find(...) my elements instead of traversin...
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In Objective-C, how do I test the object type?

I need to test whether the object is of type NSString or UIImageView . How can I accomplish this? Is there some type of "isoftype" method? ...
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JavaScript - Replace all commas in a string [duplicate]

...o use regular expression with g (global) flag. var myStr = 'this,is,a,test'; var newStr = myStr.replace(/,/g, '-'); console.log( newStr ); // "this-is-a-test" Still have issues? It is important to note, that regular expressions use special characters that need to be escaped. As an ...
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/bin/sh: pushd: not found

... But setting SHELL will not work in this case, see test1 in my answer, stackoverflow.com/questions/5193048/bin-sh-pushd-not-found/…. – hlovdal Mar 4 '11 at 12:30 ...
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How do I run only specific tests in Rspec?

I think there's a way to run only tests with a given label. Anybody know? 9 Answers 9 ...
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How do I find the current executable filename? [duplicate]

... For unit testing in VS 2012. ProcessName: vstest.executionengine.x86 ConfigurationFile: C:\TFS\Tests\MyData.Tests.v4.0\bin\Debug\MyData.Tests.v4.0.dll.config MainModule.FileName: C:\PROGRAM FILES (X86)\MICROSOFT VISUAL STUDIO 11.0\CO...