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SQL to determine minimum sequential days of access?
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@Artem: That was what I initially thought but when I thought about it, if you have an index on (UserId, CreationDate), the records will show up consecutively in the index and it should perform well.
– Mehrdad Afshari
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MongoDB/Mongoose querying at a specific date?
...onents. To query those times you need to create a date range that includes all moments in a day.
db.posts.find( //query today up to tonight
{"created_on": {"$gte": new Date(2012, 7, 14), "$lt": new Date(2012, 7, 15)}})
s...
Best way to iterate through a Perl array
...ay elements occurs. ($_ is aliased to the element in #1, but #2 and #3 actually copy the scalars from the array.)
#5 might be similar.
In terms memory usage: They're all the same except for #5.
for (@a) is special-cased to avoid flattening the array. The loop iterates over the indexes of the array...
How do I import the Django DoesNotExist exception?
...y of the model itself, in this case Answer.
Your problem is that you are calling the get method - which raises the exception - before it is passed to assertRaises. You need to separate the arguments from the callable, as described in the unittest documentation:
self.assertRaises(Answer.DoesNotExis...
What happens to a github student account's repositories at the end of 2 years?
...d, as no other service does this. How will it be if you stopped paying for extra storage on Google Drive, and the next day you find that half your files were hidden until you pay up.
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improv...
How to make an HTML back link?
...containerobj.filters ? "ie" : typeof textcontainerobj.style.MozOpacity == "string" ? "mozilla" : ""
instantset(baseopacity)
document.getElementById("tabledescription").innerHTML = thetext.href
highlighting = setInterval("gradualfade(textcontainerobj)", 50)
}
<a href="http://www.javasc...
What package naming convention do you use for personal/hobby projects in Java?
...project. I place all applications (that is, anything that has a void main(String[] args) in the class) in the futura.app.* folder. I also try to mimic the standard Java library package names for my own code, although in a couple of cases I broke convention because of my own tastes (i.e. futura.ine...
How to Sort Multi-dimensional Array by Value?
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Sweet. What I like about this solution is the extra array is built by PHP's native function making it much faster, and you have the full set of options from multisort. Great basis for a custom sorting function. Thanks.
– Brian Cugelman
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How can I strip the whitespace from Pandas DataFrame headers?
I am parsing data from an Excel file that has extra white space in some of the column headings.
3 Answers
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Convert SVG to image (JPEG, PNG, etc.) in the browser
...out the need for Canvg, which is a pretty large library because it handles all the SVG parsing that an SVG-supporting browser already provides for free. I'm not sure if this satisfies the original use-case, but if so, then see this resource for details.
– Premasagar
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