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Difference between Django's annotate and aggregate methods?
...grander scale than annotations. Annotations are inherently related to individual items in a queryset. If you run an Count annotation on a something like a many-to-many field, you'll get a separate count for each member of the queryset (as an added attribute). If you were to do the same with an aggre...
iPhone app signing: A valid signing identity matching this profile could not be found in your keycha
...blem yesterday. Now, after signing to the developer portal, for every invalid provisioning profile have a button "Renew". After renewing and downloading updated provisioning profile all seems to work as expected, so problem is definitely solved :)
Update: you may have to contact Apple to get a "Ren...
What's the difference between Task.Start/Wait and Async/Await?
...and then immediately return a task to the current caller. People get this idea in their heads that asynchrony can only be achieved through offloading work onto threads, but that's false. You can cook breakfast and read the paper while the toast is in the toaster without hiring a cook to watch the t...
How do I find the install time and date of Windows?
...hat's great, is there a special place you went to get that information or did you just know it?
– Free Wildebeest
Oct 4 '08 at 16:50
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Under what conditions is a JSESSIONID created?
When / what are the conditions when a JSESSIONID is created?
5 Answers
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jQuery UI accordion that keeps multiple sections open?
I may be an idiot, but how do you keep multiple sections in jQuery UI's accordion open? The demos all have only one open at a time... I'm looking for a collapseable menu type system.
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Why can't I do ?
...d the why and gave some ways around it. What I'll likely do (and I know I didn't provide much background) is create a local webserver to serve local images. That way the browser can display them.
– PeterV
Nov 4 '10 at 1:26
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How to iterate over associative arrays in Bash
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@DennisWilliamson, thanks a lot. I didn't have this on my mind.
– Michael-O
May 23 '14 at 7:07
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What's the difference between integer class and numeric class in R
...integers if you know that they will never be converted to doubles (used as ID values or indexing) since integers require less storage space. But if they are going to be used in any math that will convert them to double, then it will probably be quickest to just store them as doubles to begin with.
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How can I use Google's Roboto font on a website?
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Using Google's fonts this way guarantees availability, and reduces bandwidth to your own server.
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