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Find location of a removable SD card
...d an application that used a ListPreference where the user was required to select the location of where they wanted to save something.
In that app, I scanned /proc/mounts and /system/etc/vold.fstab for sdcard mount points. I stored the mount points from each file into two separate ArrayLists.
The...
In Django, how does one filter a QuerySet with dynamic field lookups?
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A simplified example:
In a Django survey app, I wanted an HTML select list showing registered users. But because we have 5000 registered users, I needed a way to filter that list based on query criteria (such as just people who completed a certain workshop). In order for the survey eleme...
ReadOnlyCollection or IEnumerable for exposing member collections?
...y of other options for wrapping trivially - the nice thing about Skip over Select/Where is that there's no delegate to execute pointlessly for each iteration.)
If you're not using .NET 3.5 you can write a very simple wrapper to do the same thing:
public static IEnumerable<T> Wrapper<T>...
How do I use WPF bindings with RelativeSource?
...bject that is also loaded from the database, but it only has access to the selected option. I had to explicitly set Path=DataContext.Message to get the binding to work. This makes sense, given that you can do relative bindings to width/height/etc. of a control.
– DrEsperanto
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How to disable scrolling temporarily?
...oll by dragging a file over the top/bottom of the page. This also works by selecting text on the page and doing the same dragover the top/bottom.
– Eliseo Soto
Apr 19 '16 at 18:58
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Emacs mode for Stack Overflow's markdown
...s/, and then export to markdown.
From emacs you can convert to markdown by selecting the region, hitting C-u M-S-\ and typing pandoc -r org -t markdown, getting output like this:
In other words, you can keep writing in org-mode, including writing italics *like this*, and then export to markdown.
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Why was the arguments.callee.caller property deprecated in JavaScript?
...g and tail recursion impossible in the general case (you can achieve it in select cases through tracing etc, but even the best code is sub optimal due to checks that would not otherwise be necessary). The other major issue is that the recursive call will get a different this value, for example:
va...
Truly understanding the difference between procedural and functional
...ow it will happen - this is powerful because if we can clearly state what "Select" and "Where" and "Aggregate" means, we are free to swap out their implementations, just like we do with AsParallel() and suddenly our single-threaded app scales out to n cores.
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Explain the use of a bit vector for determining if all characters are unique
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@Ivan Man, I was thinking the same thing. Even the selected answer didn't explain about the operators. Thank you for the detailed info.
– WowBow
Jan 6 '15 at 20:11
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Java SE 6 vs. JRE 1.6 vs. JDK 1.6 - What do these mean?
... intepretation to execute and analyze the code before compiling/optimizing selected parts of the program.
– John Nilsson
Sep 7 '10 at 15:20
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