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Get the subdomain from a URL

...is the TLD. So the question remains more complex than at first blush, and it depends on how each TLD is managed. You'll need a database of all the TLDs that include their particular partitioning, and what counts as a second level domain and a subdomain. There aren't too many TLDs, though, so the ...
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Array versus linked-list

... It's easier to store data of different sizes in a linked list. An array assumes every element is exactly the same size. As you mentioned, it's easier for a linked list to grow organically. An array's size needs to be known a...
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Is there an IDictionary implementation that, on missing key, returns the default value instead of th

... Indeed, that won't be efficient at all. You could always write an extension method: public static TValue GetValueOrDefault<TKey,TValue> (this IDictionary<TKey, TValue> dictionary, TKey key) { TValue ret; // Ignore return value dictionary.TryGetValue(key, ...
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Save ArrayList to SharedPreferences

I have an ArrayList with custom objects. Each custom object contains a variety of strings and numbers. I need the array to stick around even if the user leaves the activity and then wants to come back at a later time, however I don't need the array available after the application has been closed c...
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Convert JavaScript String to be all lower case?

...follow | edited Apr 16 '16 at 8:36 answered Sep 30 '08 at 20:26 ...
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Preloading images with jQuery

I'm looking for a quick and easy way to preload images with JavaScript. I'm using jQuery if that's important. 20 Answers ...
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How to show a dialog to confirm that the user wishes to exit an Android Activity?

I've been trying to show a "Do you want to exit?" type of dialog when the user attempts to exit an Activity. 11 Answers ...
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Random alpha-numeric string in JavaScript? [duplicate]

What's the shortest way (within reason) to generate a random alpha-numeric (uppercase, lowercase, and numbers) string in JavaScript to use as a probably-unique identifier? ...
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Simple Vim commands you wish you'd known earlier [closed]

... I really wish I'd known that you can use CtrlC instead of Esc to switch out of insert mode. That's been a real productivity boost for me. share | improve this answer | ...
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Does MySQL index foreign key columns automatically?

...follow | edited Feb 13 '19 at 7:26 Nae 9,25844 gold badges2626 silver badges6161 bronze badges ...