Inspired by https://www.facebook.com/techieprogrammer016/videos/1903944506811756
| Python | Ruby | |
|---|---|---|
| Swap two variables | a, b = b, a |
a, b = b, a |
| Reverse a string | s[::-1] |
s.reverse |
| Check palindrome | s == s[::-1] |
s == s.reverse |
| Get factorial | math.prod(range(1, n+1)) |
(1..n).inject(:*) |
| Flatten a list | [i for sub in lst for i in sub] |
lst.flatten |
| Find even numbers | [x for x in range(10) if x % 2 == 0] |
(0..9).select(&:even?) |
| Merge two dicts | {**d1, **d2} |
d1.merge(d2) |
| Count items | Counter(lst) |
lst.count |
| Get unique elements | set(lst) |
lst.uniq |
| List to string | ''.join(lst) |
lst.join |