How many breaks does the shift need

easyschedulingJavaScript

Labour law requires a 30-minute rest after every four hours on the floor. Count the mandatory breaks a shift of lengthMinutes earns.

Four full hours (240 minutes) earns the first break, eight hours the second, and so on.
A shift of exactly 240 minutes gets one break, not two.

breakCount(lengthMinutes: int) → int

Where you start

function breakCount(lengthMinutes) {
  
}

Integer-divide the minutes by 240.

Reference solution in JavaScript

function breakCount(lengthMinutes) {
  if (lengthMinutes < 240) return 0;
  return Math.floor(lengthMinutes / 240);
}