@danacita/loanjs NPM

Loanjs

Loanjs is a loan calculator that we use internally at Dana Cita.

Installation

npm i @danacita/loanjs

Features

Creating a new Repayment Schedule

let repaymentSchedule = new RepaymentSchedule({
  startDate: new Date(2017, 4, 7),
  tenor: 7,
  interestRatePerYear: 10.0,
  balanceRequested: 1250000,
  origination: 10.0
});

Generate a new Repayment Schedule

repaymentSchedule.generateSchedule();

Documentation

Repayment Schedule

new Repayment(options);

Options

Properties	Type	Default	Description
startDate	Date	*required	The starting date of the loan
tenor	number	12	The amount of time left for the repayment of the loan
interestPerYear	number	*required	The effective interest rate per year in percent (e.g: 20.5)
balanceRequested	number	*required	New / additional balance requested
origination	number	0	An upfront fee charged by a lender in percent (e.g: 3.5)
gracePeriod	number	0	A set period of time before borrower must begin repayment of the loan

Generate Schedule

generateSchedule();

Returns

[
  {
    date: '7-May-2017',
    month: 0,
    balance: 1375000,
    payment: 0,
    interest: 0,
    principal: 0
  },
  {
    date: '7-Jun-2017',
    month: 1,
    balance: 1183428,
    payment: 203031,
    interest: 11458,
    principal: 191572
  },
  {
    date: '7-Jul-2017',
    month: 2,
    balance: 990259,
    payment: 203031,
    interest: 9862,
    principal: 193169
  },
  {
    date: '7-Aug-2017',
    month: 3,
    balance: 795481,
    payment: 203031,
    interest: 8252,
    principal: 194778
  },
  {
    date: '7-Sep-2017',
    month: 4,
    balance: 599079,
    payment: 203031,
    interest: 6629,
    principal: 196402
  },
  {
    date: '7-Oct-2017',
    month: 5,
    balance: 401041,
    payment: 203031,
    interest: 4992,
    principal: 198038
  },
  {
    date: '7-Nov-2017',
    month: 6,
    balance: 201353,
    payment: 203031,
    interest: 3342,
    principal: 199689
  },
  {
    date: '7-Dec-2017',
    month: 7,
    balance: 0,
    payment: 203031,
    interest: 1678,
    principal: 201353
  }
];