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Is there a method that calculates a factorial in Java?
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How can you sort an array without mutating the original array?
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the spread-syntax as array literal (copied from mdn):
var arr = [1, 2, 3];
var arr2 = [...arr]; // like arr.slice()
https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators/Spread_operator
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What is the best way to detect a mobile device?
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Proper usage of Optional.ifPresent()
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jwismar
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answered Jun 15 '14 at 9:41
JB NizetJB Nizet
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How to check if a user is logged in (how to properly use user.is_authenticated)?
...cated is now an attribute in Django 1.10.
The method was removed in Django 2.0.
For Django 1.9 and older:
is_authenticated is a function. You should call it like
if request.user.is_authenticated():
# do something if the user is authenticated
As Peter Rowell pointed out, what may be tripping you...
What's the difference between getRequestURI and getPathInfo methods in HttpServletRequest?
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Victor Stafusa
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answered Feb 8 '11 at 9:29
trojanfoetrojanfoe
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How can I move a tag on a git branch to a different commit?
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Use the -f option to git tag:
-f
--force
Replace an existing tag with the given name (in...
Regular expression for floating point numbers
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