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Short with comprehension and join solution in Creative category for Backward String by frankiser
def backward_string(val: str) -> str:
# Use a list comprehension and convert again to string
reverse = (val[letter] for letter in range(len(val)-1, -1, -1))
return ''.join(str(letter) for letter in reverse)
if __name__ == '__main__':
print("Example:")
print(backward_string('val'))
# These "asserts" are used for self-checking and not for an auto-testing
assert backward_string('val') == 'lav'
assert backward_string('') == ''
assert backward_string('ohho') == 'ohho'
assert backward_string('123456789') == '987654321'
print("Coding complete? Click 'Check' to earn cool rewards!")
April 21, 2020
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