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Solution: Create a Fluent Pizza Order Builder

Solution: Create a Fluent Pizza Order Builder

Implement a fluent builder that supports optional fields and enforces a required size before finalizing the pizza order.

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Solution explanation

  • Lines 2–6: We initialize the builder’s internal state—size starts empty, toppings as an array, and note undefined—to capture user inputs cleanly.

  • Lines 8–21: We define fluent setter methods (withSize, addTopping, withNote) that update the respective fields and return this, allowing flexible chaining in any order.

  • Lines 24–26: In .build() ...