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Calendar Recurring/Repeating Events - Best Storage Method

... didn't want to have a large number of rows, and I wanted to easily lookup all events that would take place on a specific date. The method below is great at storing repeating information that occurs at regular intervals, such as every day, every n days, every week, every month every year, etc etc. ...
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Is Java really slow?

...my opinion, this is the main reason Java still has a bad reputation, especially server-side. This makes the String problems exponentially worse. Some simple mistakes are common: objects are often used in place of primitives, reducing performance and increasing memory use. Many Java libraries (includ...
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Concatenating two one-dimensional NumPy arrays

...smetic than substantial, but it's good when the API is consistent (e.g. if all the numpy functions that take variable length argument lists require explicit sequences). – Jim K. Aug 24 '16 at 20:43 ...
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How can I dynamically create derived classes from a base class

... This bit of code allows you to create new classes with dynamic names and parameter names. The parameter verification in __init__ just does not allow unknown parameters, if you need other verifications, like type, or that they are mandatory...
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Java abstract interface

...blic void interfacing(); public abstract boolean interfacing(boolean really); \___.__/ | '----> nor this, are necessary. } Interfaces and their methods are implicitly abstract and adding that modifier makes no difference. Is there other rules tha...
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ASP.NET MVC A potentially dangerous Request.Form value was detected from the client when using a cus

...ptions. On the model add this attribute to each property that you need to allow HTML - best choice using System.Web.Mvc; [AllowHtml] public string SomeProperty { get; set; } On the controller action add this attribute to allow all HTML [ValidateInput(false)] public ActionResult SomeAction(MyV...
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How to implement a confirmation (yes/no) DialogPreference?

...t. new AlertDialog.Builder(this) .setTitle("Title") .setMessage("Do you really want to whatever?") .setIcon(android.R.drawable.ic_dialog_alert) .setPositiveButton(android.R.string.yes, new DialogInterface.OnClickListener() { public void onClick(DialogInterface dialog, int whichButton) { ...
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How slow are .NET exceptions?

...e, where failure means "The file isn't in the format it's meant to be, I really don't want to try to handle this as I don't know what else might be wrong." When using exceptions in "only reasonable circumstances" I've never seen an application whose performance was significantly impaired by excepti...
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Callback functions in C++

In C++, when and how do you use a callback function? 10 Answers 10 ...
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Python Sets vs Lists

...move the object creation now. The setup phase of the timeit loops is only called once (docs.python.org/2/library/timeit.html#timeit.Timer.timeit). – Ellis Percival Sep 30 '14 at 10:09 ...