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Proper use of beginBackgroundTaskWithExpirationHandler
I'm a bit confused about how and when to use beginBackgroundTaskWithExpirationHandler .
5 Answers
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Check if a JavaScript string is a URL
...}))'+ // OR ip (v4) address
'(\\:\\d+)?(\\/[-a-z\\d%_.~+]*)*'+ // port and path
'(\\?[;&a-z\\d%_.~+=-]*)?'+ // query string
'(\\#[-a-z\\d_]*)?$','i'); // fragment locator
return !!pattern.test(str);
}
shar...
Convert to/from DateTime and Time in Ruby
How do you convert between a DateTime and a Time object in Ruby?
6 Answers
6
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How do I delete a Git branch locally and remotely?
I want to delete a branch both locally and remotely.
41 Answers
41
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Java; String replace (using regular expressions)?
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Couple problems: \^ needs to be \\^ and $ needs to be \$.
– cdmckay
Mar 10 '09 at 21:00
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Set Page title using UI-Router
... $rootScope.$on('$stateChangeSuccess', listener);
}
};
}
]);
And:
<title update-title></title>
Demo: http://run.plnkr.co/8tqvzlCw62Tl7t4j/#/home
Code: http://plnkr.co/edit/XO6RyBPURQFPodoFdYgX?p=preview
Even with $stateChangeSuccess the $timeout has been needed for the...
How can I mark “To Do” comments in Xcode?
...se //FIXME: or #warning. when you use #warning, you got a warning in Xcode and you can jump directly to that part.
– brush51
Jun 4 '13 at 8:48
6
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What is console.log?
...vailable. You should use window.console (as window is guaranteed to exist) and only check one depth level at one time.
– Tgr
Jan 11 '11 at 18:10
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How to sort an array in Bash
...set IFS
Supports whitespace in elements (as long as it's not a newline), and works in Bash 3.x.
e.g.:
$ array=("a c" b f "3 5")
$ IFS=$'\n' sorted=($(sort <<<"${array[*]}")); unset IFS
$ printf "[%s]\n" "${sorted[@]}"
[3 5]
[a c]
[b]
[f]
Note: @sorontar has pointed out that care is re...
What is the maximum recursion depth in Python, and how to increase it?
...n (or rather, the CPython implementation) doesn't optimize tail recursion, and unbridled recursion causes stack overflows. You can check the recursion limit with sys.getrecursionlimit:
import sys
print(sys.getrecursionlimit())
and change the recursion limit with sys.setrecursionlimit:
sys.setrecurs...