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How to replace multiple white spaces with one white space

...rmalized = NormalizeWithSplitAndJoin(bigString); var suite = new TestSuite<string, string>("Normalize") .Plus(NormalizeWithSplitAndJoin) .Plus(NormalizeWithRegex) .RunTests(bigString, normalized); suite.Display(ResultColumns.All, suite.Fin...
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How to get these two divs side-by-side?

... #parent_div_1, #parent_div_2, #parent_div_3 { width: 100px; height: 100px; border: 1px solid red; margin-right: 10px; float: left; } .child_div_1 { float: left; margin-right: 5px; } Check working example at http://js...
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ImportError: numpy.core.multiarray failed to import

... following command in my Mac terminal: python -c "import numpy;print(numpy.__version__);print(numpy.__file__)"; This command gave me the version and location of numpy that I was using (turned out it was 1.6.2). I went to this location and manually replaced it with the numpy folder for 1.8, which re...
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Managing relationships in Laravel, adhering to the repository pattern

...kiest part of this setup, for me at least, is determing if Eloquent is actually helping or harming us. ORMs are a tricky subject, because while they help us greatly from a practical point of view, they also couple your "business logic entities" code with the code doing the data retrieval. This sort...
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How to dynamic new Anonymous Class?

... All you're doing is saying that dynamic properties are not identical to strongly-typed properties. This is trivially true. – Steven Sudit Sep 18 '10 at 2:31 ...
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What is the difference between lock and Mutex?

...hine. bool firstInstance; Mutex mutex = new Mutex(false, @"Local\DASHBOARD_MAIN_APPLICATION", out firstInstance); if (!firstInstance) { //another copy of this application running } else { //run main application loop here. } // Refer to the mutex down here so garbage collection doesn't chu...
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Declaring variables inside loops, good practice or bad practice?

...he first version will not spot anything, the result of f1() will simply be tested a second time, being confused for the result of f2(). Complementary information The open-source tool CppCheck (a static analysis tool for C/C++ code) provides some excellent hints regarding optimal scope of variables...
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Best XML Parser for PHP [duplicate]

...saves on memory. You pay for that with not being able to use XPath. Personally, I find SimpleXml quite limiting (hence simple) in what it offers over DOM. You can switch between DOM and SimpleXml easily though, but I usually dont bother and go the DOM route directly. DOM is an implementation of the...
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What's wrong with foreign keys?

... always use foreign keys now. My answer to the objection "they complicated testing" is "write your unit tests so they don't need the database at all. Any tests that use the database should use it properly, and that includes foreign keys. If the setup is painful, find a less painful way to do the set...
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How to test if parameters exist in rails

I'm using an IF statement in Ruby on Rails to try and test if request parameters are set. Regardless of whether or not both parameters are set, the first part of the following if block gets triggered. How can I make this part ONLY get triggered if both params[:one] and params[:two] is set? ...