Unique

Unique returns a duplicate-free version of the slice. Only the first occurrence of each value is kept.

package main

import (
	"fmt"
	u "github.com/rjNemo/underscore"
)

func main() {
	nums := []int{1, 4, 2, 5, 3, 1, 5, 2, 8, 9}
	
	fmt.Println(u.Unique(nums)) // 1, 4, 2, 5, 3, 8, 9
}