Example for handling JSON lists with double numerical types

json.go

package main

import (
	"encoding/json"
	"fmt"
)

// JSONDemo is a demo
type JSONDemo struct {
	Foo [][2]float64 `json:"foo"`
}

func main() {
	data := []byte("{\"foo\": [[1, 1.0], [2, 12.321]]}")
	j := JSONDemo{}
	json.Unmarshal(data, &j)
	fmt.Println(j)
}

// thiderman@dragonwing demo % go run json.go
// {[[1 1] [2 12.321]]}