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http://www.freecodecamp.com/twhite96 's solution for Bonfire: Check for Palindromes
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| // Bonfire: Check for Palindromes | |
| // Author: @twhite96 | |
| // Challenge: http://www.freecodecamp.com/challenges/bonfire-check-for-palindromes?solution=function%20palindrome(str)%20%7B%0A%20%20%2F%2F%20Good%20luck!%0A%20%20%0A%20%20str%20%3D%20str.toLowerCase()%3B%0A%20%20%0A%20%20str%20%3D%20str.replace(%2F%5B%5Ea-z%7C1-9%5D%2Fg%2C%20%22%22)%3B%0A%20%20%0A%20%20if%20(str.length%20%3D%3D%3D%200)%7B%0A%20%20%20%20return%20true%3B%0A%20%20%7D%0A%20%20%0A%20%20if%20(str%5B0%5D%20!%3D%3D%20str%5Bstr.length-1%5D)%7B%0A%20%20%20%20return%20false%3B%0A%20%20%7D%0A%20%20%0A%20%20else%20%7B%0A%20%20%20%20return%20palindrome(str.slice(1%2Cstr.length%20-%201))%3B%0A%20%20%7D%0A%7D%0A%0A%0Apalindrome(%22eye%22)%3B%0A | |
| // Learn to Code at Free Code Camp (www.freecodecamp.com) | |
| function palindrome(str) { | |
| str = str.toLowerCase().replace(/[\W_]/g, ''); | |
| for(var i = 0, len = str.length - 1; i < len/2; i++) { | |
| if(str[i] !== str[len-i]) { | |
| return false; | |
| } | |
| } | |
| return true; | |
| } | |
| palindrome("eye"); |
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