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How do I check if a string is unicode or ascii?
...nicode string may consist of purely characters in the ASCII range, and a bytestring may contain ASCII, encoded Unicode, or even non-textual data.
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Do I need elements in persistence.xml?
...xml?
No, you don't necessarily. Here is how you do it in Eclipse (Kepler tested):
Right click on the project, click Properties, select JPA, in the Persistence class management tick Discover annotated classes automatically.
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How to display PDF file in HTML?
...like Google Drive) and use its URL in a iframe
or
<object data="data/test.pdf" type="application/pdf" width="300" height="200">
<a href="data/test.pdf">test.pdf</a>
</object>
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PostgreSQL return result set as JSON array?
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or combine json_agg with a cast:
SELECT json_agg(t)::jsonb FROM t
My testing suggests that aggregating them into an array first is a little faster. I suspect that this is because the cast has to parse the entire JSON result.
9.2
9.2 does not have the json_agg or to_json functions, so you nee...
How to bind 'touchstart' and 'click' events but not respond to both?
...er this method of all of the answers for this question because it's a) not testing for device capabilities and b) not using setTimeout. In my experience, solutions to problems like these that use setTimeout may work for most cases but the timing of events is fairly arbitrary and device specific.
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Bash empty array expansion with `set -u`
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I don't see you testing "${arr[@]}". Am I missing something? From what I can see it works at least in 5.x.
– x-yuri
May 9 at 17:49
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Finding current executable's path without /proc/self/exe
...ues and presents code which actually works along with validation against a test suite.
The best way to find your program is to retrace the same steps the system uses. This is done by using argv[0] resolved against file system root, pwd, path environment and considering symlinks, and pathname canoni...
Python list subtraction operation
...al work). You'd need to either do yset = set(y) outside the listcomp, then test if item not in yset, or as an egregious hack, do [item for yset in [set(y)] for item in x if item not in yset] which abuses nested listcomps to cache the yset as a one-liner. A slightly less ugly one-liner solution that ...
Disable browser cache for entire ASP.NET website
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Any thoughts on how to smoke test and verify that the cache disable is actually working?
– paaone
Mar 18 '13 at 13:22
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I am getting Failed to load resource: net::ERR_BLOCKED_BY_CLIENT with Google chrome
...are usually generated from an ad blocking plugin, such as Adblock Plus. To test this use either a different browser or uninstall the ad blocking plugin (right clicking the extension by the URL bar and clicking "Remove from Chrome...").
There is an easier way to temporarily disable an extension. In ...