If range is a palindrome larger than minLength.
assert(`dallassallad`.isPalindrome); assert(!`ab`.isPalindrome); assert(`a`.isPalindrome); assert(`åäå`.isPalindrome); assert(`áá`.isPalindrome); assert(`åäå`.isPalindrome); assert(``.isPalindrome); assert([1, 2, 2, 1].s[].isPalindrome);