Why does go-validator have to be a pointer?-CodePudding

I saw a tutorial on internet and it created a validator as a pointer but never explained. Is there any underlying purpose of doing this?

// Validation contains
type Validation struct {
    validate *validator.Validate
}

// NewValidation creates a new Validation type
func NewValidation() *Validation {
    validate := validator.New()
    validate.RegisterValidation("sku", validateSKU)

    return &Validation{validate}
}

CodePudding user response：

It is returning the pointer of Validate struct with the default values. and it is type of *validator.Validate

validate := validator.New()
func New() *Validate { }