Function Concat

strutil/string.go:654–670

Concat uses the strings.Builder to concatenate the input strings. - `length` is the expected length of the concatenated string. - if you are unsure about the length of the string to be concatenated, please pass 0 or a negative number. Play: https://go.dev/play/p/gD52SZHr4Kp

(length int, str ...string)

//
// Play: https://go.dev/play/p/gD52SZHr4Kp
func Concat(length int, str ...string) string {
	if len(str) == 0 {
		return ""
	}

	sb := strings.Builder{}
	if length <= 0 {
		sb.Grow(len(str[0]) * len(str))
	} else {
		sb.Grow(length)
	}

	for _, s := range str {
		sb.WriteString(s)
	}
	return sb.String()
}

// Ellipsis truncates a string to a specified length and appends an ellipsis.
// Play: https://go.dev/play/p/i1vbdQiQVRR