Difference

Returns a copy of the array with all instances of the values that are not present in the other arrays.

package main

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

func main() {
 nums := []int{1, 3, 5, 6, 7, 9}
 reject := []int{9, 7, 5, 4}

 fmt.Println(u.Difference(nums, reject)) // {1, 3, 6}
}