JSFiddle - React, Tailwind, and code Playground

JavaScript

file = {
    "users": [{
        "fname": "Robert",
        "lname": "Downey Jr.",
        "password": "ironman"
    }, {
        "fname": "Chris",
        "lname": "Evans",
        "password": "cap"
    }, {
        "fname": "Chris",
        "lname": "Hemsworth",
        "password": "thor"
    }, {
        "fname": "Jeremy",
        "lname": "Renner",
        "password": "hawk"
    }]
}

for (index in file.users) {
    console.log(file.users[index].fname)
}