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How does zip(*[iter(s)]*n) work in Python?
... arguments for a function call. Therefore you're passing the same iterator 3 times to zip(), and it pulls an item from the iterator each time.
x = iter([1,2,3,4,5,6,7,8,9])
print zip(x, x, x)
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Element-wise addition of 2 lists?
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371
Use map with operator.add:
>>> from operator import add
>>> list( map(add, ...
How do I shuffle an array in Swift?
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635
This answer details how to shuffle with a fast and uniform algorithm (Fisher-Yates) in Swift 4....
Find integer index of rows with NaN in pandas dataframe
...n use to index back into df, e.g.:
df['a'].ix[index[0]]
>>> 1.452354
For the integer index:
df_index = df.index.values.tolist()
[df_index.index(i) for i in index]
>>> [3, 6]
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In jQuery, how do I get the value of a radio button when they all have the same name?
...r code, jQuery just looks for the first instance of an input with name q12_3, which in this case has a value of 1. You want an input with name q12_3 that is :checked.
$("#submit").click(() => {
const val = $('input[name=q12_3]:checked').val();
alert(val);
});
<script src="https://...
Is there a difference between using a dict literal and a dict constructor?
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answered Jul 7 '11 at 12:43
John La RooyJohn La Rooy
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PHP append one array to another (not array_push or +)
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436
array_merge is the elegant way:
$a = array('a', 'b');
$b = array('c', 'd');
$merge = array_mer...
How to convert list of key-value tuples into dictionary?
...injagecko
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Convert list of dictionaries to a pandas DataFrame
...24
cs95
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answered Dec 17 '13 at 15:35
jorisjoris
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Does the ternary operator exist in R?
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306
As if is function in R and returns the latest evaluation, if-else is equivalent to ?:.
> a...