How to pretty print variables

Question

Is there something like Ruby\'s awesome_print in Go?

For example in Ruby you could write:

require \'ap\'
x = {a:1,b:2} // also works for         


        

Answer 1

I came up to use snippet like this:

func printMap(m map[string]string) {
    var maxLenKey int
    for k, _ := range m {
        if len(k) > maxLenKey {
            maxLenKey = len(k)
        }
    }

    for k, v := range m {
        fmt.Println(k + ": " + strings.Repeat(" ", maxLenKey - len(k)) + v)
    }
}

The output will be like this:

short_key:       value1
really_long_key: value2

Tell me, if there's some simpler way to do the same alignment.