Coding Challenges Data Structures and Algorithms

reversedString.js

// Reverse a string
// O(n) linear time

const reversePhrase = phrase => {
  phrase = phrase.split('')
  const halfPhrase = Math.floor(phrase.length / 2)
  const length = phrase.length - 1

  for (i=0; i < halfPhrase; i++) {
    let front = phrase[i]
    let back = phrase[length-i]
    phrase[i] = back
    phrase[length-i] = front
  }
  return phrase.join('')
}