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Ruby on Rails: Delete multiple hash keys

...port adds to Hash. It would allow your code to be simplified to: redirect_to my_path(params.except(:controller, :action, :other_key)) Also, you wouldn't have to monkey patch, since the Rails team did it for you! share ...
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postgresql - sql - count of `true` values

...actually omit ELSE null to get the same result. – 200_success May 12 '16 at 18:26  |  show 3 more comments ...
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What's the simplest way to test whether a number is a power of 2 in C++?

...a clever little bit hack to test that one and only one bit is set. bool is_power_of_2(int x) { return x > 0 && !(x & (x−1)); } For more bit twiddling see here. share | improv...
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best way to get the key of a key/value javascript object

... What if I don’t wantfoo[i]to be"_proto_"? – user2284570 May 29 '16 at 2:04 1 ...
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How to wait for a BackgroundWorker to cancel?

...e BackgroundWorker worker = new BackgroundWorker(); private AutoResetEvent _resetEvent = new AutoResetEvent(false); public Form1() { InitializeComponent(); worker.DoWork += worker_DoWork; } public void Cancel() { worker.CancelAsync(); _resetEvent.WaitOne(); // will block until _re...
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Pass arguments to Constructor in VBA

...e instantiated with name and age. This is the InitiateProperties method. m_name and m_age are our private properties to be set. Public Sub InitiateProperties(name as String, age as Integer) m_name = name m_age = age End Sub And now in the factory module: Public Function CreateEmployee...
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Iterating over all the keys of a map

... how do I iterate over all the keys? Use the accepted answer: for k, _ := range m { ... } share | improve this answer | follow | ...
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What does `dword ptr` mean?

...ral purpose computers usually use 32 or 64 bits. en.wikipedia.org/wiki/Word_(computer_architecture) – uzay95 Dec 25 '16 at 21:35 6 ...
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Detecting Windows or Linux? [duplicate]

...che commons lang has a class SystemUtils.java you can use : SystemUtils.IS_OS_LINUX SystemUtils.IS_OS_WINDOWS share | improve this answer | follow | ...
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I want to use CASE statement to update some records in sql server 2005

...N 44 ELSE 0 END AS [CycleId] INTO ##ACE1_PQPANominals_1 FROM [dbo].[ProductionQueueProcessAutoclaveNominals] WHERE [QueueId] = 3 ORDER BY [BaseDimensionId], [ElastomerTypeId], [Id]; ---- (403 row(s) affected) UPDATE [dbo].[ProductionQueueProcessAutoc...