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Is there an “exists” function for jQuery?
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Convert JSON String to JSON Object c#
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305
JObject defines method Parse for this:
JObject json = JObject.Parse(str);
You might want to...
Design patterns to avoid [closed]
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edited May 23 '17 at 12:02
community wiki
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Android Gradle plugin 0.7.0: “duplicate files during packaging of APK”
...ccording to comment 14 in this bug: https://issuetracker.google.com/issues/36982149#comment14 this is a bug in v0.7.0 of the Android Gradle plugin, and is due to be fixed soon in 0.7.1.
Here are the notes from that bug about the addition for 0.7.1:
0.7.1 is out with the fix for this.
The DSL to e...
How does Access-Control-Allow-Origin header work?
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edited May 23 '17 at 11:47
Community♦
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answered May 17 '12 at 13:33
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R: rJava package install failing
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answered Jul 24 '10 at 14:31
Dirk EddelbuettelDirk Eddelbuettel
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What are some (concrete) use-cases for metaclasses?
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Ali Afshar
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answered Dec 26 '08 at 1:35
MattMatt
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Git log to get commits only for a specific branch
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edited Jul 29 '17 at 23:39
Peter Mortensen
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Efficient way to rotate a list in python
...method.
from collections import deque
items = deque([1, 2])
items.append(3) # deque == [1, 2, 3]
items.rotate(1) # The deque is now: [3, 1, 2]
items.rotate(-1) # Returns deque to original state: [1, 2, 3]
item = items.popleft() # deque == [2, 3]
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Convert a list to a dictionary in Python
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from itertools import izip
i = iter(a)
b = dict(izip(i, i))
In Python 3 you could also use a dict comprehension, but ironically I think the simplest way to do it will be with range() and len(), which would normally be a code smell.
b = {a[i]: a[i+1] for i in range(0, len(a), 2)}
So the iter(...