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- function determineAge(birthdate){
- var dateInput = new Date(birthdate);
- var today = new Date();
- var dateInputYear = dateInput.getYear();
- var todayYear = today.getYear();
- var dateDiff = todayYear - dateInputYear;
- if(dateInput.getMonth() > today.getMonth()){
- return dateDiff - 1;
- }
- if (dateInput.getMonth() == today.getMonth() && dateInput.getDate < today.getDate()){
- return dateDiff -1;
- }
- return dateDiff
- }
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