#Avoid conditionals#

`
BAD

class Airplane {
// ...
getCruisingAltitude() {
switch (this.type) {
case "777":
return this.getMaxAltitude() - this.getPassengerCount();
case "Air Force One":
return this.getMaxAltitude();
case "Cessna":
return this.getMaxAltitude() - this.getFuelExpenditure();
}
}
}
Good:

class Airplane {
// ...
}

class Boeing777 extends Airplane {
// ...
getCruisingAltitude() {
return this.getMaxAltitude() - this.getPassengerCount();
}
}

class AirForceOne extends Airplane {
// ...
getCruisingAltitude() {
return this.getMaxAltitude();
}
}

class Cessna extends Airplane {
// ...
getCruisingAltitude() {
return this.getMaxAltitude() - this.getFuelExpenditure();
}
}
`

So redux is a bad smell?