| function reverse(stringOfChars) { | |
| // split string into an array: 'abc'.split('') => ['a', 'b', 'c'] | |
| let arrayOfChars = stringOfChars.split('') | |
| let indexLeft = 0; | |
| let indexRight = arrayOfChars.length - 1; | |
| while (indexLeft < indexRight) { | |
| // Swap characters | |
| const swap = arrayOfChars[indexLeft]; | |
| arrayOfChars[indexLeft] = arrayOfChars[indexRight]; | |
| arrayOfChars[indexRight] = temp; | |
| // Move towards middle | |
| indexLeft++, indexRight--; | |
| } | |
| return arrayOfChars.join('') | |
| } |