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November 24, 2015 08:01
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Check for Palindromes
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// Bonfire: Check for Palindromes | |
// Author: @serhiilihus | |
// Challenge: http://www.freecodecamp.com/challenges/bonfire-check-for-palindromes?solution=function%20palindrome(str)%20%7B%0A%20%20var%20flag%20%3D%20true%3B%0A%20%20str%20%3D%20str.toLowerCase().replace(%2F%5B)(%3A%5C%5C%2F%5Cs.%2C_-%5D%2Fg%2C%27%27)%3B%0A%20%20for%20(var%20i%20%3D%200%20%3B%20%20i%20%3C%20Math.floor(str.length%20%2F%202)%20%3B%20i%2B%2B%20)%0A%20%20if%20(%20str.charAt(i)%20%3D%3D%3D%20str.charAt(%20str.length%20-%20i%20-%201%20)%20)%7B%0A%20%20%20%20%20%20flag%20%3D%20true%3B%0A%20%20%7D%20else%20%7B%0A%20%20%20%20%20%20%20%20flag%20%3D%20false%3B%0A%20%20%20%20%20%20%20%20break%3B%0A%20%20%7D%0A%20return%20flag%3B%0A%7D%0A%0A | |
// Learn to Code at Free Code Camp (www.freecodecamp.com) | |
function palindrome(str) { | |
var flag = true; | |
str = str.toLowerCase().replace(/[)(:\\/\s.,_-]/g,''); | |
for (var i = 0 ; i < Math.floor(str.length / 2) ; i++ ) | |
if ( str.charAt(i) === str.charAt( str.length - i - 1 ) ){ | |
flag = true; | |
} else { | |
flag = false; | |
break; | |
} | |
return flag; | |
} |
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