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function formatMoney(num) {
return parseFloat(num).toFixed(2).replace(/\d(?=(\d{3})+\.)/g, "$&,");
}
class Data {
constructor(balance, contribution, returnRate, inflationRate, years, money) {
this.balance = balance;
this.contribution = contribution;
this.returnRate = returnRate;
this.inflationRate = inflationRate;
this.years = years;
this.money = money;
}
summary() {
const summaryRow = "<tr> <td>$ " + formatMoney(this.balance) + "</td> <td>$ " + formatMoney(this.contribution) + "</td> <td>" + (this.returnRate).toFixed(2) + " %</td> <td>" + (this.inflationRate).toFixed(2) + " %</td> </tr>";
return summaryRow;
}
adjustedRate() {
const adjustedRate = ((1 + (this.returnRate / 100)) / (1 + (this.inflationRate / 100)) - 1);
return adjustedRate;
}
graphData(monthsArr, balanceArr, interestArr) {
let matched = window.matchMedia('(prefers-color-scheme: dark)').matches;
if(matched) {
var bgColor = "#202020";
var fgColor = "#ffffff";
var gridColor = "#3b3b3b";
var lineColor = "#5b5b5b";
} else {
var bgColor = "#ffffff";
var fgColor = "#222222";
var gridColor = "#c8c8c8";
var lineColor = "#555555";
}
const balanceTrace = {
x: monthsArr,
y: balanceArr,
type: "scatter",
line: {
color: "#24ab48",
width: 2
}
};
const interestTrace = {
x: monthsArr,
y: interestArr,
type: "scatter",
line: {
color: "#0062ff",
width: 2
}
};
const balanceTitle = {
title: {
text: "Total Balance",
color: fgColor
},
paper_bgcolor: bgColor,
plot_bgcolor: bgColor,
font: {
color: fgColor
},
yaxis: {
title: "Total Balance",
gridcolor: gridColor,
zerolinecolor: gridColor,
linecolor: lineColor
},
xaxis: {
title: "Months",
gridcolor: gridColor,
zerolinecolor: gridColor,
linecolor: lineColor
}
};
const interestTitle = {
title: {
text: "Accrued Interest",
color: fgColor
},
paper_bgcolor: bgColor,
plot_bgcolor: bgColor,
font: {
color: fgColor
},
yaxis: {
title: "Accrued Interest",
gridcolor: gridColor,
zerolinecolor: gridColor,
linecolor: lineColor
},
xaxis: {
title: "Months",
gridcolor: gridColor,
zerolinecolor: gridColor,
linecolor: lineColor
}
};
return [balanceTrace, interestTrace, balanceTitle, interestTitle];
}
}
function retirementYears() {
$("tbody").empty();
const myData = new Data(parseFloat($("#begBalance").val()), parseFloat($("#monthlyContr").val()), parseFloat($("#returnRate").val()), parseFloat($("#inflationRate").val()), parseFloat($("#years").val()), null);
const summary = myData.summary();
$(".infoTable tbody").append(summary);
$(".infoTable, .resultsTable, #infoTableHeading, #resultsTableHeading").show();
var interestArr = [],
balanceArr = [],
monthsArr = [];
const adjustedRate = myData.adjustedRate();
const monthlyContr = myData.contribution;
let pVal = myData.balance;
for (var i = 0; i < (myData.years * 12); i++) {
var interest = (pVal * (adjustedRate / 12)).toFixed(2);
var newBalance = (parseFloat(pVal) + parseFloat(interest) + monthlyContr).toFixed(2);
$(".resultsTable tbody").append("<tr> <td>" + (i + 1) + "</td> <td>$ " + formatMoney(interest) + "</td> <td>$ " + formatMoney(monthlyContr) + "</td> <td>$ " + formatMoney(newBalance) + "</td> </tr>");
if ((i + 1) === 1 || (i + 1) % 12 === 0 || i === (myData.years * 12)) {
interestArr.push(parseInt(interest * 100) / 100);
balanceArr.push(parseInt(newBalance * 100) / 100);
monthsArr.push(i + 1);
}
pVal = newBalance;
}
$(".graphCard").css("display", "block");
const graphData = myData.graphData(monthsArr, balanceArr, interestArr);
Plotly.newPlot("balChartContainer", [graphData[0]], graphData[2], {
responsive: true
});
Plotly.newPlot("intChartContainer", [graphData[1]], graphData[3], {
responsive: true
});
}
function retirementMoney() {
$("tbody").empty();
const myData = new Data(parseFloat($("#begBalance").val()), parseFloat($("#monthlyContr").val()), parseFloat($("#returnRate").val()), parseFloat($("#inflationRate").val()), null, parseFloat($("#money").val()));
const summary = myData.summary();
$(".infoTable tbody").append(summary);
$(".infoTable, .resultsTable, #infoTableHeading, #resultsTableHeading").show();
var interestArr = [],
balanceArr = [],
monthsArr = [];
const adjustedRate = myData.adjustedRate();
const monthlyContr = myData.contribution;
let pVal = myData.balance;
let money = myData.money;
for (var i = 0; pVal < money; i++) {
var months = i + 1;
var newBalance = (pVal + (pVal * (adjustedRate / 12)) + monthlyContr);
$(".resultsTable tbody").append("<tr> <td>" + months + "</td> <td>$ " + formatMoney((pVal * (adjustedRate / 12))) + "</td> <td>$ " + formatMoney(monthlyContr) + "</td> <td>$ " + formatMoney(newBalance) + "</td> </tr>");
var roundedInterest = parseInt((pVal * (adjustedRate / 12)) * 100) / 100;
var roundedBalance = parseInt(newBalance * 100) / 100;
if (months === 1 || months % 12 === 0 || pVal > money) {
interestArr.push(roundedInterest);
balanceArr.push(roundedBalance);
monthsArr.push(months);
}
pVal = newBalance;
}
$(".graphCard").css("display", "block");
const graphData = myData.graphData(monthsArr, balanceArr, interestArr);
Plotly.newPlot("balChartContainer", [graphData[0]], graphData[2], {
responsive: true
});
Plotly.newPlot("intChartContainer", [graphData[1]], graphData[3], {
responsive: true
});
}
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