Extras/Muffin Shop Checkout

Business rules

• Divider lines: buildDivider builds the = / - banner lines by repeating a character to a given length.
• Money display: formatMoney formats an amount with a leading $ (for example 3.25 displays as $3.25, and 4 as $4).
• Subtotal: sum of each line item (quantity × unit price for muffins and scones).
• Member discount: members get 10% off when the subtotal is at least $15; otherwise the discount is $0.
• Tax: applied to the amount after the discount, using taxRate.
• Tip: applied to the post-discount subtotal plus tax, using tipPercent.
• Pickup fee (use a switch on pickupMethod):
  • counter → $0
  • curbside → $3
  • delivery → $7
• Pickup label: show FREE when the fee is $0; otherwise show the fee with formatMoney.
• Member message: Member discount applied for members, otherwise Join the club for 10% off.
• Total: subtotal, minus discount, plus tax, tip, and pickup fee.
• Print the assembled receipt with console.log.

Success criteria (default fixtures)

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Morning Muffins
Order for Avery
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Muffins: 3 x $3.25
Scones: 2 x $4
--------------------------------
Subtotal: $17.75
Discount: -$1.78
Tax: $1.31
Tip: $2.86
Pickup fee: FREE
--------------------------------
Total: $20.14
Member discount applied
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Run the example

npm run start --workspace extra_muffin-shop-checkout

Try next

• 🐨 Add a dailySpecialCount and dailySpecialPrice, then include them in the subtotal.
• 🐨 Create a hasCoupon boolean and apply an extra discount with an if check.
• 🐨 Use a loop to build a summaryLine like Items: 5 total.
• 🐨 Add a rushOrder flag that increases the tipPercent when true.
• 💰 Try a new pickupMethod value and update the switch to handle it.