javascript today minus 1 day
var d = new Date();
d.setDate(d.getDate()-1);
javascript today minus 1 day
var d = new Date();
d.setDate(d.getDate()-1);
js date minus 18 years
use moment.js
how to substract date object javascript
Example
<html>
<head>
<title>JavaScript setDate Method</title>
</head>
<body>
<script>
var dt = new Date("December 30, 2017 11:20:25");
dt.setDate( dt.getDate() - 10 );
document.write( dt );
</script>
</body>
</html>
Output
Wed Dec 20 2017 11:20:25 GMT+0530 (India Standard Time)
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