ChangeYear - GetFullYear - SetFullYear Functions - Extract The 4-digit Value From The Today Variable And Store The Value In A Variable Named Year

a.) specify two parameters for the changeYear function: today and holiday.

function changeYear(today)(holiday){

b.) in the first line of the above function, use the getFullYear() date method to extract the 4-digit value from the today variable and store the value in a variable named year.

first line

c.) in the second line; use the setFullYear() date method to set the full year of the holiday date object to the value of the year variable.

second line

d.) in the third line, use a conditional operator on the year variable. The test condition is whether the value of the holiday date object is less than the today date object. If it is, this means that the event has already passed in the current year and the value of the year variable should be increased by 1.

third line

e.) in the fourth line of the function, again set the full year value of the holiday date object to the value of the year variable.