JSFiddle - React, Tailwind, and code Playground
by NOVUSIDEA
JavaScript
var curr = new Date();
curr.setFullYear( curr.getFullYear() - 16 );
var dob = Date.parse('1999-11-24');
if( (curr - dob) < 0 ) {
alert("Under 16");
} else {
alert("Over 16");
}