<html lang="en">
<head>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>Merge Sort</title>
<script>
// JavaScript program for Merge Sort
// Merges two subarrays of arr[].
// First subarray is arr[l..m]
// Second subarray is arr[m+1..r]
function merge(arr, l, m, r)
{
var n1 = m - l + 1;
var n2 = r - m;
, // Create temp arrays
var L = new Array(n1);
var R = new Array(n2);
// Copy data to temp arrays L[] and R[]
for (var i = 0; i < n1; i++)
L[i] = arr[l + i];
for (var j = 0; j < n2; j++)
R[j] = arr[m + 1 + j];
// Merge the temp arrays back into arr[l..r]
// Initial index of first subarray
var i = 0;
// Initial index of second subarray
var j = 0;
// Initial index of merged subarray
var k = l;
while (i < n1 && j < n2) {
if (L[i] <= R[j]) {
arr[k] = L[i];
i++;
}
else {
arr[k] = R[j];
j++;
}
<head>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>Merge Sort</title>
<script>
// JavaScript program for Merge Sort
// Merges two subarrays of arr[].
// First subarray is arr[l..m]
// Second subarray is arr[m+1..r]
function merge(arr, l, m, r)
{
var n1 = m - l + 1;
var n2 = r - m;
, // Create temp arrays
var L = new Array(n1);
var R = new Array(n2);
// Copy data to temp arrays L[] and R[]
for (var i = 0; i < n1; i++)
L[i] = arr[l + i];
for (var j = 0; j < n2; j++)
R[j] = arr[m + 1 + j];
// Merge the temp arrays back into arr[l..r]
// Initial index of first subarray
var i = 0;
// Initial index of second subarray
var j = 0;
// Initial index of merged subarray
var k = l;
while (i < n1 && j < n2) {
if (L[i] <= R[j]) {
arr[k] = L[i];
i++;
}
else {
arr[k] = R[j];
j++;
}
