Interactive online courses HTML Academy
2026-03-09 14:06 Diff
https://htmlacademy.org/courses/javascript-programming/functions/add-array
  • script.js

JavaScript

var calculateMiles = function (distance, isBusinessClass) { var percent = 0.18; if (isBusinessClass) { percent += 0.04; } if (distance > 3500) { percent += 0.15; } return distance * percent; }; var calculateFlights = function (distance, isBusinessClass, milesTarget) { var miles = calculateMiles(distance, isBusinessClass); var flights = Math.ceil(milesTarget / miles); return flights; }; // Add an array and loop here var flightsVariantFirst = calculateFlights(3118, true, 15000); var flightsVariantSecond = calculateFlights(3617, false, 15000); console.log('Required number of flights in business class to Valencia: ' + flightsVariantFirst); console.log('Required number of economy flights to Lisbon: ' + flightsVariantSecond); if (flightsVariantFirst > flightsVariantSecond) { console.log('You will save quicker flying economy to Lisbon! Number of flights: ' + flightsVariantSecond); } else { console.log('You will save quicker flying business class to Valencia! Number of flights: ' + flightsVariantFirst); }

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Result

  1. After calculateFlights function, create variable targets, which contains array [3000, 7500, 15000].
  2. After variable targets, create for loop, which goes through array targets from the very first element to the last one using i counter.
  3. Move into the loop the entire code that is written below this loop.
  4. In calls of calculateFlights function, replace the last argument with the current element of targets array.