enumerate clear solution for Second Index by rodka81 - python coding challenges

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enumerate solution in Clear category for Second Index by rodka81

def second_index(text: str, symbol: str) -> [int, None]:
    try:
        return [i for i, a in enumerate(text) if a == symbol][1]
    except IndexError:
        return None

Aug. 28, 2018

Comments:

Phil15 on Nov. 15, 2020, 4:09 p.m.
<p>I kinda like it. It would be a bit ineficient to iterate over an entire book and list all indexes but</p> <pre class='brush: python'>indexes = (i for i, a in enumerate(text) if a == symbol) next(indexes, None) # first or None return next(indexes, None) # second or None </pre>

Strings Theory

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