I would like to know a simple and efficient way to print a table in Go. The solution I found works but it is really ugly.
many Thanks !
outfile := "file.tsv"
f, err := os.Create(outfile)
var buffer bytes.Buffer
buffer.WriteString(a[i])
buffer.WriteString("\t")
buffer.WriteString(a[j])
buffer.WriteString("\t")
buffer.WriteString(strconv.FormatFloat(x, 'f', 4, 64))
buffer.WriteString("\n")
// // write results to outfile
f.WriteString(buffer.String())
The tabwriter package in the standard library is simple and easy for this kind of thing:
w := tabwriter.NewWriter(os.Stdout, 1, 1, 1, ' ', 0)
fmt.Fprintln(w, "a\tb\tc\td\t")
fmt.Fprintln(w, "aa\tbb\tcc\t")
fmt.Fprintln(w, "aaa\tbbb\tccc\t")
fmt.Fprintln(w, "aaaa\tbbbb\tcccc\tdddd\t")
w.Flush()
// Prints out:
// a b c d
// aa bb cc
// aaa bbb ccc
// aaaa bbbb cccc dddd
You can replace the os.Stdout with any io.Writer.