I just started https://warriorjs.com/. I'm on level 5 now, I can do this by doing a million if else statements, but I saw people make separate functions, to make it easier to work and read later on.

• How to create a function (is enemy or it is a captive in front of me)?
• I created function isCaptive (warrior), but I get an Error: isCaptive is not defined.

class Player {
    /**
     * Plays a warrior turn.
     *
     * @param {Warrior} warrior The warrior.
     */
    playTurn(warrior) {
        // Cool code goes here
        if (this.health > warrior.health()) {
            if (warrior.feel().isEmpty()) {
                warrior.walk();
            } else {
                isCaptive(warrior);
            }
        } else {
            if ((warrior.health() !== warrior.maxHealth()) && warrior.feel().isEmpty()) {
                warrior.rest();
            } else if (warrior.feel().isEmpty()) {
                warrior.walk();
            } else {
                warrior.attack();
            }
        }
        this.health = warrior.health();

    }
    isCaptive(warrior) {
        if (warrior.feel().getUnit().isEnemy()) {
            warrior.attack();
        } else if (warrior.feel().getUnit().isBound()) {
            warrior.rescue();
        }
    }
}