50 lines
1.4 KiB
Go
50 lines
1.4 KiB
Go
// 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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// For more tutorials : https://learngoprogramming.com
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// In-person training : https://www.linkedin.com/in/inancgumus/
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// Follow me on twitter: https://twitter.com/inancgumus
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package main
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import (
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"fmt"
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"sort"
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)
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func main() {
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l := list{
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{title: "moby dick", price: 10, released: toTimestamp(118281600)},
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{title: "odyssey", price: 15, released: toTimestamp("733622400")},
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{title: "hobbit", price: 25},
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}
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sort.Sort(l)
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sort.Sort(sort.Reverse(l))
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sort.Sort(byReleaseDate(l))
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sort.Sort(sort.Reverse(byReleaseDate(l)))
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fmt.Print(l)
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}
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/*
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Summary:
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- sort.Sort() can sort any type that implements the sort.Interface
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- sort.Interface has three methods: Len(), Less(), Swap()
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- Len() returns the length of a collection.
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- Less(i, j) should return true when an element comes before another one.
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- Swap(i, j)s the elements when Less() returns true.
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- sort.Reverse() can reverse sort a type that satisfies the sort.Interface.
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- You can customize the sorting:
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- Either by implementing the sort.Interface methods,
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- or by anonymously embedding a type that already satisfies the sort.Interface
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- and adding a Less() method.
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- Anonymous embedding means auto-forwarding method calls to an embedded value.
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*/
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