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Does Java casting introduce overhead? Why?

...ng: Implicit casting, when you cast from a type to a wider type, which is done automatically and there is no overhead: String s = "Cast"; Object o = s; // implicit casting Explicit casting, when you go from a wider type to a more narrow one. For this case, you must explicitly use casting like th...
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Passing data to Master Page in ASP.NET MVC

...string Name { get; set; } public float Price { get; set; } } Since I don't want individual controllers to know anything about putting together the master pages data I encapsulate that logic into a factory which is passed to each controller: public interface IViewDataFactory { T Create<...
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Duplicate log output when using Python logging module

... The logging.getLogger() is already a singleton. (Documentation) The problem is that every time you call myLogger(), it's adding another handler to the instance, which causes the duplicate logs. Perhaps something like this? import os import time import datetime import log...
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How to deep watch an array in angularjs?

...$watch('data', function (newVal, oldVal) { /*...*/ }, true); See https://docs.angularjs.org/api/ng/type/$rootScope.Scope#$watch Since Angular 1.1.x you can also use $watchCollection to watch shallow watch (just the "first level" of) the collection. $scope.$watchCollection('data', function (newVa...
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What is fastest children() or find() in jQuery?

...s at the immediate children of the node, while find() traverses the entire DOM below the node, so children() should be faster given equivalent implementations. However, find() uses native browser methods, while children() uses JavaScript interpreted in the browser. In my experiments there isn't muc...
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How to download a branch with git?

... name. git checkout -b newlocalbranchname origin/branch-name Or you can do: git checkout -t origin/branch-name The latter will create a branch that is also set to track the remote branch. Update: It's been 5 years since I originally posted this question. I've learned a lot and git has impro...
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AngularJS - Binding radio buttons to models with boolean values

...and change the radio buttons all that were once selected are true and they don't switch back to false. Is there a solution for this? (problem also exists in OP's Fiddle) – Dominik G Apr 16 '15 at 10:05 ...
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What's the difference between --general-numeric-sort and --numeric-sort options in gnu sort

...g the standard C function strtod to convert a prefix of each line to a double-precision floating point number. This allows floating point numbers to be specified in scientific notation, like 1.0e-34 and 10e100. The LC_NUMERIC locale determines the decimal-point character. Do not repo...
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Calculate date from week number

...(monday here in Europe). I know the year and the week number? I'm going to do this in C#. 23 Answers ...
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Trying to add adb to PATH variable OSX

...it really easily. I have added directories before by for some reason adb does not want to be found. This is very frustrating. Has anyone else had this problem before? ...