I am using some code I found online to remove an element from a list:
func Remove(slice []string, s int) []string {
return append(slice[:s], slice[s+1:]...)
}
but the problem is whenever I use it it duplicates the last item on the list! The following code:
func main() {
lst := []string{"1", "2", "3"}
fmt.Println(lst)
slice.Remove(lst, 1)
fmt.Println(lst)
}
returns [1, 3, 3].
What am I doing wrong?
Please store the or return value from the func.
lst = slice.Remove(lst, 1)
Here is the documentation from go src:
The append built-in function appends elements to the end of a slice. If it has sufficient capacity, the destination is resliced to accommodate the new elements. If it does not, a new underlying array will be allocated. Append returns the updated slice. It is therefore necessary to store the result of append, often in the variable holding the slice itself:
slice = append(slice, elem1, elem2) slice = append(slice, anotherSlice...)As a special case, it is legal to append a string to a byte slice, like this:
slice = append([]byte("hello "), "world"...)
