06. Capstone: Simple Calculator
Explanation
This project integrates objects, methods, and logic to demonstrate how real-world software components are structured.
Storing functions as methods inside an object allows you to group related behavior and data into a single entity.
Switch statements or if/else logic inside a method can handle multiple specialized operations based on user input strings.
This architectural approach is the foundation of Object-Oriented Programming (OOP) and helps organize large apps.
By using properties to store state and methods to modify it, you create a self-contained and predictable logic module.
Completing this capstone proves you can bridge the gap from basic syntax to building functional, organized features.
Example
obj.method = function() { ... }Exercise Task
Create an object 'calculator' with a method 'operate' that takes (a, b, operation). Support 'add' and 'multiply'. Log the result of (10, 5, 'add').
script.js
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const calculator = {
// Implement operate here
};
Console
Click "Run" to execute your code...