Sample bad code

example.ts

// EXAMPLE 1 
class Appliance {
    name: string; 

    constructor(name: string){ 
        this.name = name;
    }
    getName() { 
        return this.name;
    }
    saveAppliance(a: Appliance) { 
        // some code to save the appliance
    }
}


// EXAMPLE 2

class Washer extends Appliance { name: string = 'washer'}
class Dryer extends Appliance { name: string = 'dryer'}

class ApplianceRunner {
    private appliance: Appliance;
    
    constructor(appliance: Appliance) {
        this.appliance = appliance;
    }

    run() {
        if (this.appliance.name == 'washer') {
            // Some code to wash
        } else if (this.appliance.name == 'dryer') {
            // some code to dry
        }
    }
}


// EXAMPLE 3
interface ApplianceContextListener {
    onStart(a: Appliance): void;
    onShutdown(a: Appliance): void;
}


// EXAMPLE 4
class ApplianceWarranty { }

class WasherWarranty extends ApplianceWarranty { }

class WarrantyValidator {
    constructor(private washerWarranty: WasherWarranty) { }

    isUnderWarranty(): boolean {
        // We are a terrible company and want to randomly 
        // determine if an appliance is under warranty.
        return Math.random() <= .5;
    }
}