gilo/fn/fn.go

package fn

import "strings"

func TruncateString(s string, length int) string {
	if length < 1 {
		return ""
	}

	var buf strings.Builder
	count := 0

	for _, char := range s {
		if count == length {
			break
		}

		buf.WriteRune(char)
		count++
	}

	return buf.String()
}