JSON Marshal-Unmarshal vs Encoding-Decoding in Go (golang)

Sample-Data-For-JSON-Operations.go

type Character struct {
	Name        string   `json:"name"`
	Designation []string `json:"designation"`
	Age         int      `json:"age"`
	Moves       []Move   `json:"moves"`
}

type Move struct {
	Name  string `json:"move"`
	Power int    `json:"power"`
}

var (
	data = []Character{
		{
			Name: "Monkey D Luffy",
			Designation: []string{
				"King of the Pirates",
				"Captain of Straw Hats",
				"Rubber Man",
			},
			Age: 17,
			Moves: []Move{
				{"Gum Gum Bazooka", 2500},
				{"Gum Gum Gatling", 2000},
			},
		},
		{
			Name: "Rovanova Zoro",
			Designation: []string{
				"World's Greatest Swordsman",
				"First Mate of Straw Hats",
				"Pirate Hunter",
			},
			Age: 19,
			Moves: []Move{
				{"108 Caliber Phoenix", 2000},
				{"Lion's Strike", 1500},
			},
		},
		{
			Name: "Nami",
			Designation: []string{
				"Navigator",
				"Pirate Thief",
			},
			Age: 18,
			Moves: []Move{
				{"Thunderbolt Tempo", 1000},
				{"Clima-Tact", 800},
			},
		},
	}
)