Beginning and end pairs in array - JavaScript

We are required to write a JavaScript function that takes in an array of Number / String literals and returns another array of arrays. With each subarray containing exactly two elements, the nth element from start nth from last.

For example −

If the array is −

const arr = [1, 2, 3, 4, 5, 6];

Then the output should be −

const output = [[1, 6], [2, 5], [3, 4]];

Example

Following is the code −

const arr = [1, 2, 3, 4, 5, 6]; const edgePairs = arr => {    const res = [];    const upto = arr.length % 2 === 0 ? arr.length / 2 : arr.length / 2 - 1;    for(let i = 0; i < upto; i++){       res.push([arr[i], arr[arr.length-1-i]]);    };    if(arr.length % 2 !== 0){       res.push([arr[Math.floor(arr.length / 2)]]);    };    return res; }; console.log(edgePairs(arr));

Output

Following is the output in the console −

[ [ 1, 6 ], [ 2, 5 ], [ 3, 4 ] ]