Make Counter

Create a function makeCounter that returns a counter object with methods to increment, decrement, and reset the counter. The counter should maintain its current value and provide these operations:

1. increment() – Increases the counter by 1 and returns the new value.
2. decrement() – Decreases the counter by 1 and returns the new value.
3. reset() – Resets the counter to its initial value (default: 0) and returns the reset value.

The counter should also allow an optional initial value.

Example Inputs & Outputs

const counter = makeCounter(5);
console.log(counter.increment()); // 6  
console.log(counter.increment()); // 7  
console.log(counter.decrement()); // 6  
console.log(counter.reset());     // 5  
console.log(counter.decrement()); // 4  

Constraints & Edge Cases

• The counter should handle negative initial values.
• The counter should not expose its internal value directly (encapsulation).
• Methods should be chainable (optional bonus).