Javascript age calculation on IPad -

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on every regular browser, date calculated .. 38 year old.

on ipad not number (nan) error... why?

function getage(date) {     var today = new date();     var birthdate = new date(date);     var age = today.getfullyear() - birthdate.getfullyear();     var m = today.getmonth() - birthdate.getmonth();     if (m < 0 || (m === 0 && today.getdate() < birthdate.getdate())) {         age--;     }     return age;  }

edit: nan @ ipad, ie8 , correct working @ firefox&chrome

you need following transformations on input date string work on ipad/iphone.

function getage(date) {     date = date.replace(/-/,"/").replace(/-/,"/"); //substitute - /     var today = new date();     var birthdate = new date(date);     var age = today.getfullyear() - birthdate.getfullyear();     var m = today.getmonth() - birthdate.getmonth();     if (m < 0 || (m === 0 && today.getdate() < birthdate.getdate())) {         age--;     }     return age; }

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