Go TryableMap

Tryable Map is safety dig tool for Map(key/value) and Array.

For example, you can chain like Ruby's try method and find the property.

How to use

package main

import (
  "fmt"
  tryablemap "github.com/HaraKeisuke/go-tryablemap/lib"
)

func main() {
    data := map[string]interface{}{
      "first": map[string]int{
        "second": 123,
      },
    }
    _map := tryablemap.New(data)
    result := _map.Try("first").Value("second")

    fmt.Println(result) //=> 123

    data2 := map[string][]string{
      "sample": []string{
        "first", "second", "third",
      },
    }

    _map2 := tryablemap.New(data2)
    result2 := _map2.TryArray("sample").Value(0)

    fmt.Println(result2) //=> first


    data3 := [][]int{
      []int{1, 2, 3}, []int{4, 5, 6}, []int{7, 8, 9},
    }
    _map3 := tryablemap.NewArray(data3)
    result4 := _map3.TryArray(0).Value(2)

    fmt.Println(result4) //=> 3

    data4 := map[string]interface{}{
      "hoge": []map[string]interface{}{{"first": 1}, {"second": 2}, {"third": 3}},
    }
    _map4 := tryablemap.New(data4)
    result4 := _map4.TryArray("hoge").Try(0).Value("first")

    fmt.Println(result4) //=> 1
}

Finally

Please tell me if there is a better way �:)