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Getting all selected checkboxes in an array
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How can I move a tag on a git branch to a different commit?
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1256
Use the -f option to git tag:
-f
--force
Replace an existing tag with the given name (in...
How do I install an old version of Django on virtualenv?
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142
There was never a Django 1.0.7. The 1.0 series only went up to 1.0.4. You can see all the releas...
How can you sort an array without mutating the original array?
...);
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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How to change the port of Tomcat from 8080 to 80?
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1) Go to conf folder in tomcat installation directory
e.g. C:\Tomcat 6.0\conf\
2) Edit fol...
How can I get the max (or min) value in a vector?
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Using c++11/c++0x compile flags, you can
auto it = max_element(std::begin(cloud), std::end(clo...
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 is the best way to detect a mobile device?
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