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How is Racket different from Scheme?
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Racket is ultimately based on R5RS, and not R6RS and not a strict superset of either. I don't think it can be called 'Scheme' because it's not backwards compatible with any Scheme standard.
Most implementations offer extensions, but are otherwise back...
Beginner's guide to ElasticSearch [closed]
...arch (that I know of), and http://www.elasticsearch.org/guide/ seems to contain only references.
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Why does PostgreSQL perform sequential scan on indexed column?
Very simple example - one table, one index, one query:
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Authorative way to override onMeasure()?
What's the correct way of overriding onMeasure()? I've seen various approaches. For example, Professional Android Development uses MeasureSpec to calculate the dimensions, then ends with a call to setMeasuredDimension(). For example:
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iPhone app in landscape mode, 2008 systems
Please note that this question is from 2008 and now is of only historic interest.
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Hidden Features of MySQL
I've been working with Microsoft SQL Server with many years now but have only just recently started to use MySQL with my web applications, and I'm hungry for knowledge.
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How to get the mouse position without events (without moving the mouse)?
Is it possible to get the mouse position with JavaScript after page loads without any mouse movement event (without moving the mouse)?
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What is a “thread” (really)?
I have been trying to find a good definition, and get an understanding, of what a thread really is.
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Returning a value from thread?
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One of the easiest ways to get a return value from a thread is to use closures. Create a variable that will hold the return value from the thread and then capture it in a lambda expression. Assign the "return" value to this v...
Performance of FOR vs FOREACH in PHP
First of all, I understand in 90% of applications the performance difference is completely irrelevant, but I just need to know which is the faster construct. That and...
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