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Why are trailing commas allowed in a list?
...er.
– Greg Hewgill
Jul 22 '12 at 6:14
10
@Burhan If you don't believe that explanation, how about...
Remove autolayout (constraints) in Interface Builder
...t able to remove the autolayout in the nibs using Interface builder (XCode 4.3 on Lion).
2 Answers
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Append class if condition is true in Haml
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74
just a side note for multiple conditions ` {class: [('class1' unless condition1), ('class2' if condition2)]} ` .. etc
–...
Extension methods cannot be dynamically dispatched
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edited Jan 5 '14 at 13:44
answered Jan 5 '14 at 11:12
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Html5 data-* with asp.net mvc TextboxFor html attributes
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421
You could use underscore (_) and the helper is intelligent enough to do the rest:
@Html.TextB...
Check if item is in an array / list
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414
Assuming you mean "list" where you say "array", you can do
if item in my_list:
# whatever...
Python set to list
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245
Your code does work (tested with cpython 2.4, 2.5, 2.6, 2.7, 3.1 and 3.2):
>>> a = se...
Index all *except* one item in python
... 3rd element:
a = range(10)[::-1] # [9, 8, 7, 6, 5, 4, 3, 2, 1, 0]
b = [x for i,x in enumerate(a) if i!=3] # [9, 8, 7, 5, 4, 3, 2, 1, 0]
This is very general, and can be used with all iterables, including numpy arrays. If you replace [] with (), b will be an iterator inst...
Where is the “Fold” LINQ Extension Method?
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JasonJason
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Iterate a list with indexes in Python
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>>> a = [3,4,5,6]
>>> for i, val in enumerate(a):
... print i, val
...
0 3
1 4
2 5
3 6
>>>
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