js数组按某一项统计

var data=[

        {id: "001",inputer: "张三",inputer_code: "003"},

        {id: "002",inputer: "诺一",inputer_code: "001"},

        {id: "003",inputer: "张三",inputer_code: "003"},

        {id: "004",inputer: "诺一",inputer_code: "001"},

        {id: "005",inputer: "李四",inputer_code: "004"},

        {id: "006",inputer: "胡六",inputer_code: "001"},

        {id: "007",inputer: "张三",inputer_code: "003"},

        {id: "008",inputer: "诺一",inputer_code: "001"},

        {id: "009",inputer: "王五",inputer_code: "003"},

        {id: "010",inputer: "王五",inputer_code: "001"},

        {id: "011",inputer: "李四",inputer_code: "004"},

        {id: "012",inputer: "诺一",inputer_code: "001"}

    ];