Joining strings in golang

Question

why are the output of those codes different?

fmt.Println(Join([]string{"name=xxx", string(127)}, "&"))

output name=xxx&

fmt.Println(Join([]string{"name=xxx", "127"}, "&"))

output name=xxx&127

Any help!

Answer 1

string(127) means the character whose code is 127, it is not printable. use strconv