Interactive online courses HTML Academy
2026-03-09 10:48 Diff
https://htmlacademy.org/courses/javascript-programming/arrays/investigation-completed-again

JavaScript

var expectedUsers = 1000; var usersByDay = [817, 581, 1370, 752, 1247, 681, 1120, 915, 875, 1341, 757, 610, 812, 741, 1139, 812, 638, 877, 1242, 1159, 1372, 1170, 845, 1289, 515, 1247, 769, 1261, 2805, 1201]; // Drawing the traffic graph muffin.plot(usersByDay, expectedUsers); // Summarizing traffic var totalUsers = 0; for (var i = 0; i <= usersByDay.length - 1; i++) { totalUsers += usersByDay[i]; } // Calculating the average traffic value var averageUsers = totalUsers / usersByDay.length; console.log('Average traffic: ' + averageUsers); if (averageUsers > expectedUsers) { console.log('Traffic is amazing. Keep up the good work!'); } else { console.log('Traffic is so-so. You need to try harder!'); } // Sorting the array for (var i = 0; i <= usersByDay.length - 2; i++) { var minValue = usersByDay[i]; for (var j = i + 1; j <= usersByDay.length - 1; j++) { if (usersByDay[j] < minValue) { minValue = usersByDay[j]; var swap = usersByDay[i]; usersByDay[i] = minValue; usersByDay[j] = swap; } } } // Calculating median if (usersByDay.length % 2 !== 0) { var medianIndex = (usersByDay.length - 1) / 2; var median = usersByDay[medianIndex]; } else { var leftIndex = usersByDay.length / 2 - 1; var rightIndex = usersByDay.length / 2; var median = (usersByDay[leftIndex] + usersByDay[rightIndex]) / 2; } console.log('Median traffic: ' + median);