javascript work out age from date of birth
// To calculate age: var year_born = prompt("Please enter your date of birth:", "Type here"); var d = new Date(); var n = d.getFullYear(); function getAge(birthYear){ var currentDate = new Date(); var currentYear = currentDate.getFullYear(); age = currentYear - birthYear; return age; } calculatedAge = getAge(year_born); alert("Hello, " + "you are " + calculatedAge + " years old!");