Replace

you can replace all propertys to file via file.replace function

const json = require("jsonbyte");


const file = new json("./file.json")
/*
{
    "username": "user",
    "password": "pass"
}
*/

file.replace({
    firstName: "Tommy",
    secondName: "Jimmy"
}).save();

/*
{
    "firstName": "Tommy",
    "secondName": "Jimmy"
}
*/