if(!nextSet.size)
if(nextSet.size < 2)
if (this.maxTankCapacity < this.vehicle.maxTankCapacity) { (this.maxTankCapacity / amount) * fuelPrice; }
if (amount === undefined) { this.maxTankCapacity * amount; ... }
if (this.money < this.fuelPrice) { Math.random(this.amount - this.money); }
if (this.money !== parseInt) { ... }
мне удобнее читать