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#javascript #array-methods
[1, 2, 3].join('my separator'); // "1my separator2my separator3" [1, 2, 3].join(','); // "1,2,3" [1, 2, 3].join(', '); // "1, 2, 3" [1, 2, 3].join('sandwich'); // "1sandwich2sandwich3"
Tue Aug 04 2020 19:23:59 GMT+0000 (Coordinated Universal Time) https://www.freecodecamp.org/news/freecodecamp-palindrome-checker-walkthrough/