eloquent javascript Reversing an array

eloquent javascript.js

function reverse(array) {
  const reversedArray = []
  
  for(let i = array.length - 1; i >= 0; i -= 1) {
    reversedArray.push(array[i])
  }
  
  return reversedArray
}

function reverseInPlace(array) {
  const len = array.length - 1
  const lenFor = Math.floor(len / 2)
  
  for(let i = 0; i <= lenFor; i += 1) {
    const tmp = array[i]
    
    array[i] = array[len - i]
    array[len - i] = tmp
  }
  
  return array
}