JSFiddle - React, Tailwind, and code Playground

JavaScript

var x = {
    "metaData": {
        "date": "2014-10-06"
    },
    "listOf": [
        {
            "fname": "bill",
            "id": 23
        },
        {
            "fname": "tom",
            "id": 35
        },
        {
            "fname": "jerry",
            "id": 12
        },
        {
            "fname": "batman",
            "id": 68
        },
        {
            "fname": "superman",
            "id": 55
        }
    ]
};

x.listOf.sort(function(a, b) {
    if (a.fname > b.fname) {
        return 1;
    } else if (a.fname < b.fname) {
        return -1;
    }
    return 0;
});

alert(JSON.stringify(x.listOf));