Rotate an array

let activities = [
    ['Work', 9],
    ['Eat', 1],
    ['Commute', 2],
    ['Play Game', 1],
    ['Sleep', 7]
];


function rotate( parameter ){
	var newarr = [];
	for( var x = 0; x < parameter[0].length; x++ ){
	  newarr[x] = [];
	  for( var y = 0; y <parameter.length; y++ ){
	    newarr[x].push( parameter[y][x] );
	  }
	}

	return newarr;

}

console.log(rotate(activities));