Flatten

Flatten[I any](input [][]I) []I

Flatten - receives a slice of slice of type I and flattens it to a slice of type I.

package main

import (
    "github.com/Goldziher/go-utils/sliceutils"
)

func main() {
    items := [][]int{
        {1, 2, 3, 4},
        {5, 6},
        {7, 8},
        {9, 10, 11},
    }

    flattened := sliceutils.Flatten(items) //[]int{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11}
}