package viewmodel import ( "fmt" ) func ByteCountBinary(b int64) string { const unit = 1024 if b < unit { return fmt.Sprintf("%d B", b) } div, exp := int64(unit), 0 for n := b / unit; n >= unit; n /= unit { div *= unit exp++ } return fmt.Sprintf("%.1f %ciB", float64(b)/float64(div), "KMGTPE"[exp]) }