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How to write a Unit Test?

...l,calculatedVal). Test your method by running it (in Eclipse, right click, select Run as → JUnit test). //for normal addition @Test public void testAdd1Plus1() { int x = 1 ; int y = 1; assertEquals(2, myClass.add(x,y)); } Add other cases as desired. Test that your binary sum doe...
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How to speed up insertion performance in PostgreSQL

...rypto module) is (a lot) faster than uuid_generate_v4() =# explain analyze select uuid_generate_v4(),* from generate_series(1,10000); QUERY PLAN ---------------------------------------------------------------------------------------------------...
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“On-line” (iterator) algorithms for estimating statistical median, mode, skewness, kurtosis?

...oints you have, in theory you only have to partially sort, e.g. by using a selection algorithm. However, that doesn't help too much with billions of values. I would suggest using frequency counts, see the next section. Median and Mode with Frequency Counts If it is integers, I would count frequenc...
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On localhost, how do I pick a free port number?

... Bind the socket to port 0. A random free port from 1024 to 65535 will be selected. You may retrieve the selected port with getsockname() right after bind(). share | improve this answer | ...
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Min/Max-value validators in asp.net mvc

... } public override bool IsValid(object value) { return Convert.ToDouble(value) >= _minValue; } public IEnumerable<ModelClientValidationRule> GetClientValidationRules(ModelMetadata metadata, ControllerContext context) { var rule = new ModelClientValid...
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How can I tell if my server is serving GZipped content?

...erested). You can tell using Developer Tools (F12). Go to the Network tab, select the file you want to examine and then look at the Headers tab on the right. If you are gzipped, then you will see that in the Content-Encoding. In this example, slider.jpg is indeed being gzipped. Compare that to t...
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What is the difference between SqlCommand.CommandTimeout and SqlConnection.ConnectionTimeout?

...ndTimeout = timeout limit for your SQL query. Means, how much time a (eg: SELECT, UPDATE) query can take for its execution. If it exceeds SqlCommand.CommandTimeout, then it stops execution. A command timeout error will occur. SqlConnection.ConnectionTimeout = timeout limit for your connection. Mea...
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How to unset a JavaScript variable?

...all browsers. Running in real documents, your code examples are correct. I selected your answer as correct, but I'd appreciate it if you can edit it to include explaining window.a = 1; delete window.a; and possibly the mechanism. I can do so as well if you don't mind. – Guss ...
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Has anyone used Coffeescript for a production application? [closed]

...concern. It's entirely likely, from the text I've given, that we've simply converted already working javascript into coffeescript, hence no serious debugging is yet required – PandaWood Jan 30 '12 at 0:58 ...
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Update git commit author date when amending

... in the source code of git(1) in date.c 'now' is a special value which is converted using date_now() function. Same for 'noon', 'yesterday', 'midnight', 'tea' and others listed in the structure array special[]. – sbz Jul 29 '16 at 0:18 ...