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The goal: Any language. The smallest function which will return whether a string is a palindrome. Here is mine in Python:
R=lambda s:all(a==b for a,b in zip(s,reversed(s))) 50 characters.
The accepted answer will be the current smallest one – this will change as smaller ones are found. Please specify the language your code is in.
7 characters in J: Not sure if this is the best way, I’m somewhat new to J 🙂
explanation: |. reverses the input. -: compares. the operands are implicit.