[Go] Overriding String method.

package main

import (
    "fmt"
    "strconv"
)

type Vector []float64

func NewVector(args ...float64) Vector {
    return args
}

func (v Vector) String() string {
    out := "("

    for i, e := range v {
        out += strconv.FormatFloat(e, 'f', -2, 64)

        if i < len(v)-1 {
            out += ", "
        }
    }

    out += ")"

    return out
}

func main() {
    v := NewVector(1, 2, 3, 4, 5)

    fmt.Println(v)
}