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Are there other whitespace codes like &nbsp for half-spaces, em-spaces, en-spaces etc useful in HTML

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When to use next() and return next() in Node.js

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How to securely save username/password (local)?

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How to get different colored lines for different plots in a single figure?

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MongoDB with redis

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What does @@variable mean in Ruby?

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How ListView's recycling mechanism works

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What is a ViewModelLocator and what are its pros/cons compared to DataTemplates?

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MongoDB: Combine data from multiple collections into one..how?

...er by using the "reduce" out option in MongoDB 1.8+ map/reduce (see http://www.mongodb.org/display/DOCS/MapReduce#MapReduce-Outputoptions). You need to have some key in both collections that you can use as an _id. For example, let's say you have a users collection and a comments collection and you...
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What does the brk() system call do?

...ould not however find anything about it on the glibc docs, e.g.: https://www.gnu.org/software/libc/manual/html_mono/libc.html#Resizing-the-Data-Segment Things will likely just work there I suppose since mmap is likely used for malloc. See also: What's unsafe/legacy about brk/sbrk? Why does ca...