Freeze and Seal Objects in JavaScript

Variables we declare in javascript with the help of const, are not purely constant. Let's say that if we have a variable called config with a bunch of properties and if we print it to the console you will see it has a name and a database object.

const config = {
    name: "module-account",
    database: {
        host: "127.0.0.1",
        port: "2020",
        username: "admin",
        password: "r@@t",
    },
};
console.log(config);    //…