Usage no npm install needed!

<script type="module">
  import doubleTrouble from 'https://cdn.skypack.dev/double-trouble';
</script>

README

Double Trouble

Simple double-entry bookkeeping system written in JavaScript. Not recommended for use by anyone.

Usage

DT = require('double-trouble');

ledger = DT.createLedger({
  '200': 'Revenue',
  '400': 'Cost',
  '700': 'Accounts Receivable',
  '800': 'Bank Account',
});

ledger.journal(
    'Invoice Created',
    [
      { 'account': '200', 'amount': 200 },
      { 'account': '700', 'amount': -200 }
    ]
);

ledger.journal(
    'Invoice Paid',
    [
      { 'account': '700', 'amount': 200 },
      { 'account': '800', 'amount': -200 }
    ]
);

// returns { '200': 200, '400': 0, '700': 0, '800': -200 }
console.log(ledger.balances());