How to delete elements in slice in go language

The method of deleting elements in go language slice: first delete a single element or delete elements in batches through the "func main() {...}" method; then connect the elements before and after the deletion point.

The operating environment of this article: Windows7 system, Go1.11.2, Dell G3 computer.

golang slice delete elements

1. Delete a single element

func main() {
    
    seq := []string{"a", "b", "c", "d", "e"}
    // 指定删除位置       
    index := 2
 
    // 将删除点前后的元素连接起来
    seq = append(seq[:index], seq[index+1:]...)
    fmt.Println(seq)//[a b d e]
}

The second parameter of append is the appended element, which is appended one by one

If the second parameter is a slice, then use..., which will append the elements in the second slice to the first slice one by one.

2. Batch deletion

Delete the first 4 elements

func main() {
    
    seq := []string{"a", "b", "c", "d", "e"}
    // 指定删除位置       
    index := 3
 
    // 将删除点前后的元素连接起来
    seq = append(seq[:0], seq[index+1:]...)
    fmt.Println(seq)//[e]
}

Recommended tutorial: "go language"

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