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Multiple levels of 'collection.defaultdict' in Python
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Use:
from collections import defaultdict
d = defaultdict(lambda: defaultdict(int))
This will create a new defaultdict(int) whenever a new key is accessed in d.
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How to compare a local git branch with its remote branch?
... branch -a to list all branches (local and remote) then choose branch name from list (just remove remotes/ from remote branch name.
Example: git diff master origin/master (where "master" is local master branch and "origin/master" is a remote namely origin and master branch.)
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How to get the first five character of a String
...ar of the string. Is there a way to get the first n number of characters from a string in C#?
19 Answers
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C# - how to determine whether a Type is a number
...: do not use the suggested optimization! I looked at the IL code generated from such a switch, and noted that the compiler already applies the optimization (in IL 5 is subtracted from the type code and then values from 0 to 10 are considered true). Hence the switch should be used for it's more reada...
Is there any pythonic way to combine two dicts (adding values for keys that appear in both)?
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Use collections.Counter:
>>> from collections import Counter
>>> A = Counter({'a':1, 'b':2, 'c':3})
>>> B = Counter({'b':3, 'c':4, 'd':5})
>>> A + B
Counter({'c': 7, 'b': 5, 'd': 5, 'a': 1})
Counters are basically a subclass ...
When is it better to use an NSSet over an NSArray?
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The image from Apple's Documentation describes it very well:
Array is an ordered (order is maintained when you add) sequence of elements
[array addObject:@1];
[array addObject:@2];
[array addObject:@3];
[array addObject:@4];
[array...
How to get indices of a sorted array in Python
...is referring to the itemgetter function in the operator module, FYI. So do from operator import itemgetter to use it.
– Lauritz V. Thaulow
Jun 21 '11 at 11:12
1
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bootstrap modal removes scroll bar
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Its better to use overflow-y:scroll and remove padding from body, bootstrap modal added padding to page body.
.modal-open {
overflow:hidden;
overflow-y:scroll;
padding-right:0 !important;
}
IE browser Compatible: IE browser doing same thing by default.
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Which browsers support ?
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From your referenced page:
http://googlecode.blogspot.com/2009/12/google-analytics-launches-asynchronous.html
Firefox 3.6 is the first browser to officially offer support for this new feature. If you're curious, here are...
Maximum size of a element
...ange errors with Firefox 16.0.2.
First, I seem to get different behavior from in memory (created in javascript) canvas as opposed to html declared canvas.
Second, if you don't have the proper html tag and meta charset, the canvas might be restricted to 8196, otherwise you can go up to 32767.
T...