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Pandas - Get first row value of a given column

... To select the ith row, use iloc: In [31]: df_test.iloc[0] Out[31]: ATime 1.2 X 2.0 Y 15.0 Z 2.0 Btime 1.2 C 12.0 D 25.0 E 12.0 Name: 0, dtype: float64 To select the ith value in the Btime column you could use: In [...
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Compare equality between two objects in NUnit

... Override .Equals for your object and in the unit test you can then simply do this: Assert.AreEqual(LeftObject, RightObject); Of course, this might mean you just move all the individual comparisons to the .Equals method, but it would allow you to reuse that implementation...
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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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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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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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/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 ...