Find longest streak

find-longest-streak.ts

function findLongestStreak(booleans: boolean[], streakGoal: number): number {
  const streaks: number[] = [];
  let indexStreak = 0;

  for (let index = 0; index < booleans.length + 1; index++) {
    const boolean = booleans[index];

    if (boolean === true) {
      streaks[indexStreak] = (streaks[indexStreak] ?? 0) + 1;
    }

    if (boolean === false) {
      indexStreak++;
    }
  }

  const longestStreak = Math.max(...streaks);

  return longestStreak >= streakGoal ? longestStreak : 0;
}

console.log(findLongestStreak([true, true, false, true, true, true], 3));
// 3

console.log(findLongestStreak([true, true, true, false, true], 4));
// 0

console.log(findLongestStreak([true, true, true, true], 2));
// 4