How to Go
Sorting
🏗️
Go's standard library provides robust support for sorting slices and user-defined collections through the sort package. It includes functions for sorting built-in types as well as interfaces for custom sorting logic.
Key Points
- The sort package provides functions for sorting slices of built-in types like int, float64, and string.
- Custom sorting can be achieved by implementing the sort.Interface.
- The sort.Slice function allows sorting slices using a custom less function without defining a new type.
- Stable sorting is available via sort.Stable, which preserves the order of equal elements.
- Sorting is done in-place, modifying the original slice.
Basic Sorting Example
This example demonstrates how to sort a slice of integers using the sort package:
package main
import (
"fmt"
"sort"
)
func main() {
numbers := []int{5, 2, 6, 3, 1, 4}
fmt.Println("Before sorting:", numbers)
sort.Ints(numbers)
fmt.Println("After sorting:", numbers)
}
Before sorting: [5 2 6 3 1 4]
After sorting: [1 2 3 4 5 6]