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Redis key naming conventions?

What are the normal naming convention for keys in redis? I've seen values separated by : but I'm not sure what the normal convention is, or why. ...
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Clicking the text to select corresponding radio button

I'm creating a quiz web application using PHP. Each question is comprised of a separate <label> and has 4 possible choices, using radio buttons to allow the user to select his/her answer. The current HTML for a single question looks like: ...
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textarea's rows, and cols attribute in CSS

I'd like to set the textarea 's rows and cols attributes via CSS. 5 Answers 5 ...
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Predicate in Java

I am going through the code which uses Predicate in Java. I have never used Predicate . Can someone guide me to any tutorial or conceptual explanation of Predicate and its implementation in Java? ...
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How can I split a text into sentences?

I have a text file. I need to get a list of sentences. 12 Answers 12 ...
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What's the point of having pointers in Go?

...know that pointers in Go allow mutation of a function's arguments, but wouldn't it have been simpler if they adopted just references (with appropriate const or mutable qualifiers). Now we have pointers and for some built-in types like maps and channels implicit pass by reference. ...
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mongoDB/mongoose: unique if not null

I was wondering if there is way to force a unique collection entry but only if entry is not null . e Sample schema: 4 Answ...
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Which is best way to define constants in android, either static class, interface or xml resource?

I'm developing an android application which uses web service to get data from server, for that I'm having three different set of URLs to point development system, test server and live server. It's difficult to change URL whenever I want to give application for testing/live. so I planned to make it a...
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What is a Manifest in Scala and when do you need it?

Since Scala 2.7.2 there is something called Manifest which is a workaround for Java's type erasure. But how does Manifest work exactly and why / when do you need to use it? ...
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Build the full path filename in Python

I need to pass a file path name to a module. How do I build the file path from a directory name, base filename, and a file format string? ...