How to use sort package

The sort package provides functions and types to sort slices of basic types and custom types. Use sort.Ints for integers, sort.Strings for strings, or sort.Slice with a custom comparison function for complex types.

import "sort"

nums := []int{5, 2, 9, 1}
sort.Ints(nums) // [1, 2, 5, 9]

strings := []string{"banana", "apple"}
sort.Strings(strings) // ["apple", "banana"]

type Person struct { Name string; Age int }
people := []Person{{"Alice", 30}, {"Bob", 25}}
sort.Slice(people, func(i, j int) bool {
    return people[i].Age < people[j].Age
})

The sort package is a built-in tool that arranges lists of data in order, like sorting a deck of cards by number or alphabetizing a contact list. You use it when you need to organize data before displaying it or searching through it. It handles simple lists automatically and lets you define your own rules for complex data.