const distanceTraveledMiles = [267, 345, 234, 190, 299]

const distanceTraveledKm = distanceTraveledMiles.map(function(distance){
    return Math.round(distance * 1.6)
})

console.log(distanceTraveledKm)

/*
Challenge
1. Refactor this .map method so the inline function is
   an arrow function. 
2. Write the least amount of code possible.
*/