How to implement merge sort in JavaScript?

Posted by Prem Tiwari | Updated on

In this answer, I have shared how to implement merge sort in JavaScript.

Merge Sort Algorithm

  1. Divide the unsorted list into n sublists, each containing one element. A list of one element is inherently sorted.
  2. Repeatedly merge sorted sublists (called “runs”) to produce longer runs until there is only one run remaining. This is the sorted list.

Example: Merge sort in JavaScript

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