Node processing time measurement tools

measures.js

const arrayOfObjects = [
  {name: 'A', level: 5},
  {name: 'B', level: 10},
  {name: 'C', level: 15},
  {name: 'D', level: 20},
  {name: 'E', level: 25},
  {name: '-', level: 0}
];

let cloneArrayA = arrayOfObjects.slice();
let cloneArrayB = arrayOfObjects.slice();

function orderByLevel(array) {
  array.sort((a,b) => {
    return a.level - b.level;
  });
}

console.time('DefaultJS');
orderByLevel(cloneArrayA);
console.timeEnd('DefaultJS');

const hrstart = process.hrtime();
orderByLevel(cloneArrayB);
const hrend = process.hrtime(hrstart);

console.info("Execution time (hr): %ds %dms", hrend[0], hrend[1]/1000000);