Merge sort

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Fri Jul 02 2021 21:26:12 GMT+0000 (Coordinated Universal Time)

const _mergeArrays = (a, b) => {

  const c = []

  while (a.length && b.length) {

    c.push(a[0] > b[0] ? b.shift() : a.shift())

  }

  //if we still have values, let's add them at the end of `c`

  while (a.length) {

    c.push(a.shift())

  }

  while (b.length) {

    c.push(b.shift())

  }

  return c

}

const mergeSort = (a) => {

  if (a.length < 2) return a

  const middle = Math.floor(a.length / 2)

  const a_l = a.slice(0, middle)

  const a_r = a.slice(middle, a.length)

  const sorted_l = mergeSort(a_l)

  const sorted_r = mergeSort(a_r)

  return _mergeArrays(sorted_l, sorted_r)

}

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Randomize shit

@hisam

Custom sort : shuffle an array the quick way Fisher-Yates algorith : (Really) shuffle and array Custom sort : shuffle an array the quick way Durstenfeld shuffle algorithm : Optimized Fisher-Yates Shuffle a deck of cards Return random el from array Merge sort Quick sort

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Merge sort

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