35 lines
579 B
Go
35 lines
579 B
Go
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// For more tutorials: https://blog.learngoprogramming.com
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//
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// Copyright © 2018 Inanc Gumus
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// Learn Go Programming Course
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// License: https://creativecommons.org/licenses/by-nc-sa/4.0/
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//
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package main
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import "fmt"
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type list []item
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func (l list) print() {
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if len(l) == 0 {
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fmt.Println("Sorry. Our store is closed. We're waiting for the delivery 🚚.")
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return
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}
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for _, it := range l {
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it.print()
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}
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// TODO: NEW
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fmt.Printf("\tTOTAL : $%.2f\n", l.sum())
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}
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// TODO: NEW
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func (l list) sum() (n float64) {
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for _, it := range l {
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n += it.sum()
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}
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return n
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}
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