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How to detect online/offline event cross-browser?
...to accurately detect when the browser goes offline, using the HTML5 online and offline events.
14 Answers
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Get generic type of class at runtime
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I am getting java.lang.Class cannot be cast to java.lang.reflect.ParameterizedType for this answer.
– Tomáš Zato - Reinstate Monica
May 1 '15 at 13:14
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Can overridden methods differ in return type?
...er generates/uses plain classes for nested/inner classes, type erasure and casts for generics, synthetic accessors for nested/inner class private "friendship", synthetic instance fields for outer 'this' pointers, synthetic static fields for '.class' literals, etc, etc.
and covariant return types is...
What is the difference between task and thread?
...m.Threading.Tasks namespace. What is the true difference between Thread and Task . I did some sample program(help taken from MSDN) for my own sake of learning with
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How can I redirect HTTP requests made from an iPad?
... the edits take effect. On Ubuntu that's sudo service squid3 reload. Also--and maybe this is a config problem specific to my dev server--on my iPad I have to manually enter the http:// for address resolution to work correctly.
– Andy Giesler
Jun 4 '14 at 15:39
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if A vs if A is not None:
...checking for a specific value - None - not just "any value that happens to cast to False".
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Get PostGIS version
...hes the given name and argument types. You might need to add explicit type casts. but this one worked. The problem with the above not working was fixed by doing the CREATE EXTENSION Postgis from the console rather than from the db-migrate.js
– Eric Darchis
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PostgreSQL, checking date relative to “today”
... a year ago and part of the day today. If you want to filter on full days, cast now()::date as Alex Howansky suggested.
– tokenizer_fsj
Jul 4 '19 at 21:40
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How do you install ssh-copy-id on a Mac?
...d out my brew library was a bit overdue for a refresh. Running brew update and then installing again solved the problem.
– LapplandsCohan
Sep 29 '16 at 18:30
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Entity Framework - Include Multiple Levels of Properties
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hi, i have an exception at runtime, cannot cast IncludableQueryable<observablecollection> to IncludableQueryable<genericcollection>
– user2475096
Mar 29 '18 at 18:00
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