Palindrome Checker - 1 eye for of 1 eye. test error

In the JavaScript Algorithms and Data Structures Projects, in the last section, in the Palindrome Checker exercise, there’s a test to check if the string 1 eye for of 1 eye. is a palindrome. This string is a palindrome, but the test expects it to not be one.

That string is not a palindrome.

You’ll need to remove all non-alphanumeric characters

1 is a number and thus an alphanumeric character.

Got it, so numbers are included! My mistake!