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Assigning a variable NaN in python without numpy
Most languages have a NaN constant you can use to assign a variable the value NaN. Can python do this without using numpy?
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Error handling principles for Node.js + Express.js applications?
... error reporting/handling is done differently in Node.js+ Express.js applications compared to other frameworks. Am I correct in understanding that it works as follows?
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How to check if all elements of a list matches a condition?
...(item[2] == 0 for item in items), it's just a little nicer to read in this case.
And, for the filter example, a list comprehension (of course, you could use a generator expression where appropriate):
>>> [x for x in items if x[2] == 0]
[[1, 2, 0], [1, 2, 0]]
If you want to check at leas...
Are parallel calls to send/recv on the same socket valid?
...operations, so assuming you're talking about POSIX send/recv then yes, you can call them simultaneously from multiple threads and things will work.
This doesn't necessarily mean that they'll be executed in parallel -- in the case of multiple sends, the second will likely block until the first compl...
How do I resize a Google Map with JavaScript after it has loaded?
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If you're using Google Maps v2, call checkResize() on your map after resizing the container. link
UPDATE
Google Maps JavaScript API v2 was deprecated in 2011. It is not available anymore.
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Two single-column indexes vs one two-column index in MySQL?
...olumns, the query might be faster (you should measure). A two column index can also be used as a single column index, but only for the column listed first.
Sometimes it can be useful to have an index on (A,B) and another index on (B). This makes queries using either or both of the columns fast, but...
ASP.NET: This method cannot be called during the application's pre-start initialization stage
...="enableSimpleMembership" value="false"/>
<add key="autoFormsAuthentication" value="false"/>
EDIT:
For the ones who ask why, it is a known issue described in the mvc 3 release notes
More details here
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Scala: What is the difference between Traversable and Iterable traits in Scala collections?
...l don't understand the difference between Iterable and Traversable traits. Can someone explain ?
4 Answers
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What is the canonical way to determine commandline vs. http execution of a PHP script?
...and-line or via HTTP, primarily for output-formatting purposes. What's the canonical way of doing this? I had thought it was to inspect SERVER['argc'] , but it turns out this is populated, even when using the 'Apache 2.0 Handler' server API.
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Reuse Cucumber steps
I want to reuse some Cucumber steps but can't seem to find the right way.
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