Created
April 3, 2020 01:22
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Identify top users/purchases
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| function idBestUsers() { | |
| let monthlyOrders = [...arguments]; | |
| let totalMonths = monthlyOrders.length; | |
| let clientOrders = new Object(); | |
| monthlyOrders[0].forEach(clientId => { | |
| if(!clientOrders[clientId]) { | |
| clientOrders[clientId] = new Array(monthlyOrders.length); | |
| clientOrders[clientId][0] = 0; | |
| } | |
| clientOrders[clientId][0]++; | |
| }); | |
| var month; | |
| for (month = 1; month < totalMonths; month++) { | |
| monthlyOrders[month].forEach(clientId => { | |
| if(clientOrders[clientId]) { | |
| if(!clientOrders[clientId][month]) { | |
| clientOrders[clientId][month] = 0; | |
| } | |
| clientOrders[clientId][month]++; | |
| } | |
| }); | |
| } | |
| for (var clientId in clientOrders) { | |
| var totalOrdersForClient = 0; | |
| var everyMonth = true; | |
| var orders = clientOrders[clientId]; | |
| for(var month = 0; month < totalMonths; month++) { | |
| if(!orders[month]) { | |
| everyMonth = false; | |
| break; | |
| } | |
| totalOrdersForClient += orders[month]; | |
| } | |
| if (everyMonth) { | |
| clientOrders[clientId] = totalOrdersForClient; | |
| } else { | |
| delete clientOrders[clientId]; | |
| } | |
| } | |
| var clientsByOrderTotal = new Object(); | |
| Object.keys(clientOrders).forEach(clientId => { | |
| var clientTotal = clientOrders[clientId]; | |
| if(!clientsByOrderTotal[clientTotal]) { | |
| clientsByOrderTotal[clientTotal] = [clientId]; | |
| } else { | |
| clientsByOrderTotal[clientTotal].push(clientId); | |
| } | |
| }); | |
| var clientsByOrderTotalArray = Object.keys(clientsByOrderTotal).map(total => [parseInt(total), clientsByOrderTotal[total]]); | |
| clientsByOrderTotalArray.forEach(a => a[1].sort()); | |
| return clientsByOrderTotalArray.sort((a, b) => b[0] - a[0]); | |
| } |
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