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How to get numbers after decimal point?
...e round(0.5299999999999998 , 2) to get 0.53 Another way is to use Decimal from decimal package. docs.python.org/2/library/decimal.html
– SirJ
May 7 '19 at 11:49
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How to get an array of unique values from an array containing duplicates in JavaScript? [duplicate]
...
Edited
ES6 solution:
[...new Set(a)];
Alternative:
Array.from(new Set(a));
Old response. O(n^2) (do not use it with large arrays!)
var arrayUnique = function(a) {
return a.reduce(function(p, c) {
if (p.indexOf(c) < 0) p.push(c);
return p;
}, []);
};
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Unsafe JavaScript attempt to access frame with URL
...m getting the below error when i try to set a hash value to the parent url from iframe which contains another domain url:
6...
Element-wise addition of 2 lists?
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Use map with operator.add:
>>> from operator import add
>>> list( map(add, list1, list2) )
[5, 7, 9]
or zip with a list comprehension:
>>> [sum(x) for x in zip(list1, list2)]
[5, 7, 9]
Timing comparisons:
>>> list2 = [4, 5,...
How can I inject a property value into a Spring Bean which was configured using annotations?
I have a bunch of Spring beans which are picked up from the classpath via annotations, e.g.
18 Answers
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Asp.net MVC ModelState.Clear
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Update:
This is not a bug.
Please stop returning View() from a POST action. Use PRG instead and redirect to a GET if the action is a success.
If you are returning a View() from a POST action, do it for form validation, and do it the way MVC is designed using the built in helpers. ...
Python group by
..., ('9843236', 'KAT'), ('5594916', 'ETH'), ('1550003', 'ETH')]
>>> from collections import defaultdict
>>> res = defaultdict(list)
>>> for v, k in input: res[k].append(v)
...
Then, convert that dictionary into the expected format.
>>> [{'type':k, 'items':v} for ...
How do I specify the exit code of a console application in .NET?
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3 options:
You can return it from Main if you declare your Main method to return int.
You can call Environment.Exit(code).
You can set the exit code using properties: Environment.ExitCode = -1;. This will be used if nothing else sets the return code or ...
How to migrate GIT repository from one server to a new one
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Would this only copy a single branch from the old repository to the new one?
– Andrew Grimm
Feb 28 '12 at 23:42
34
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javax vs java package
...y as a library to work with earlier versions (which would be useful). Note from many years later: it actually ended up being in java after all.
I believe there are restrictions on the java package - I think classloaders are set up to only allow classes within java.* to be loaded from rt.jar or some...