Extend the blueprint
Build your first JetBot child instance.
SUPERHERO CITY
Super Bot Factory
Blueprint Lab taught you to stamp many robots from one class. Today, build a new blueprint on top of it. The child class inherits the robot's skills, then adds a superpower of its own!
🧬 Inheritance: code with a family tree
A child class can inherit properties and methods from a parent class. That means less repeated code and specialized objects that still share the same foundation.
extends
Connects the child blueprint to its parent.
Connects the child blueprint to its parent.
super()
Runs the parent's constructor first.
Runs the parent's constructor first.
Inherited method
speak() works without rewriting it.Override
A child replaces a method with its own version.
A child replaces a method with its own version.
Think of it as: Robot → SuperBot. Every SuperBot is a Robot, but not every Robot has a jetpack!
super-bot-factory.jsLIVE CODE
⚙️ Design a child class instance
Choose a power, then build!
🏙️ Superhero City PreviewOUTPUT
Your super squad will land here! 🏙️
> Factory ready. Build a child class instance...
0SUPER BOTS
0INHERITED SPEAKS
0POWER MOVES
🏆 Factory challenges
Prove inheritance
Use the inherited speak() method.
Specialize the child
Trigger a power method unique to the child class.
Build a class family
Create two different child-class types.
Override the move
Train three bot types and compare their custom moves.
📚 What you learned
extendsmakes one class inherit from another.super()calls the parent constructor.- Child instances can use inherited properties and methods.
- Child classes add specialized methods without copying the parent.
- Method overriding gives the same command a specialized result.