how to return two arrays in an array in javascript code example

Example 1: return two arrays javascript

this.runThisFunctionOnCall = function(){
    var array1 = [11,12,13,14,15];
    var array2 = [21,22,23,24,25];
    var array3 = [31,32,33,34,35];

    return [
     array1,
     array2,
     array3
    ];
}

Example 2: javascript function multiple return

function doubleEachElement(num1, num2) {
  return [num1 * 2, num2 * 2];
}
const [a, b] = doubleEachElement(68, 100);