how would I code the following?

Hector has supplied you with a function named nextJuly4() that returns the date of the next 4th of July. Call the nextJuly4() function using thisDay as the parameter value and store the date returned by the function in the j4Date variable.

function nextJuly4(currentDate) { var cYear = currentDate.getFullYear(); var jDate = new Date("July 4, 2018"); jDate.setFullYear(cYear); if ((jDate - currentDate) < 0) jDate.setFullYear(cYear + 1); return jDate; }

The countdown clock should count down to 9 p.m. on the 4th of July. Apply the setHours() method to the j4Date variable to change the hours value to 9 p.m. (Hint: Express the value for 9 p.m. in 24-hour time.)