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When to use virtual destructors?

I have a solid understanding of most OOP theory but the one thing that confuses me a lot is virtual destructors. 17 Answe...
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Are string.Equals() and == operator really same? [duplicate]

Are they really same? Today, I ran into this problem. Here is the dump from the Immediate Window: 8 Answers ...
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How do I convert an existing callback API to promises?

I want to work with promises but I have a callback API in a format like: 20 Answers 20...
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What's better at freeing memory with PHP: unset() or $var = null

...unction call ( update , is actually a language construct), but it would be interesting to know if one is better than the other. I have been using unset() for most of my coding, but I've recently looked through a few respectable classes found off the net that use $var = null instead. ...
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How can I set the color of a selected row in DataGrid

The default background color of a selected row in DataGrid is so dark that I can't read it. Is there anyway of overriding it? ...
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Is it not possible to stringify an Error using JSON.stringify?

I'm running into an issue when trying to pass error messages around using web sockets. I can replicate the issue I am facing using JSON.stringify to cater to a wider audience: ...
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Sorting rows in a data table

We have two columns in a DataTable , like so: 12 Answers 12 ...
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How to get current location in Android [duplicate]

I'm having troubles of getting my current position coordinates using the NETWORK provider of android location system. 3 An...
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Where to place private methods in Ruby?

... The best practice in my point of view is to go sequentially and declare your methods without keeping private in point of view. At the end, you can make make any method private by just adding: private :xmethod Example: class Example def xme...
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How to initialize an array's length in JavaScript?

Most of the tutorials that I've read on arrays in JavaScript (including w3schools and devguru ) suggest that you can initialize an array with a certain length by passing an integer to the Array constructor using the var test = new Array(4); syntax. ...