Stuck at weakest quickest (Sarwen) jsc

Level Help
1

Hello

Have some issue at this Sarwen level.
When I launch, it every times start by the “strongest” one instead of the weakest and I dont know why.

Thanks for you help, here is my code :

// Defeat shamans to survive.

// This function finds the weakest enemy.
function findWeakestEnemy() {
    var enemies = hero.findEnemies();
    var weakest = null;
    var leastHealth = 99999;
    var enemyIndex = 0;
    // Loop through enemies:
    while(enemyIndex < enemies.length) {
        // If an enemy's health is less than leastHealth:
        var enemy = enemies[enemyIndex];
        if (enemy.health < leastHealth) {
            // Make it the weakest 
            weakest = enemy;
            // and set leastHealth to its health.
            leastHealth = enemy.health;
            enemyIndex +=1;
        }
    
    return weakest;
    }

}

while(true) {
    // Find the weakest enemy with the function:
    var weakest = findWeakestEnemy();
    // If the weakest enemy exists:
    if (weakest) {
        // Attack it!
        hero.attack(weakest);
    }
}
2

Find help somewhere else.

Mistake about return inside the loop and index increment in If statement.

Sorry.