Find If A String Has All Unique Characters

Find If A String Has All Unique Characters - Python

Find if a string has all unique characters in Python 3

Set Method

def unique_or_not(s):
return len(set(s))==len(s)

Iteration Method

def unique_or_not2(s):
tl = []
for i in range(len(s)):
ts = s[i]
if ts in tl:
return False
tl.append(ts)
return True

Test

%timeit unique_or_not('abcdef')
679 ns per loop
%timeit unique_or_not2('abcdef')
1.75 µs per loop

Comments

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