necesito agregar uno datos a un correo de forma anonima

function hello() {
    return "hello";
}

let hello = function() {
    return "hello";
}

let hello = () {
    return "hello";
}

let hello = () => {
    return "hello";
}

let hello = () => "hello";

let hello = name => `hello ${name}`;

let hello = (name, age) => {
    return `hello ${name} you are ${age} years old`;
}

let hello = (name, age) => `hello ${name} you are ${age} years old`;

let hello = (name, age) => {
    let text = `hello ${name} you are ${age} years old`;
    return text;
}

let hello = (name, age) => {
    return {
        name : name,
        age : age
    }
}

class Person {
    constructor(name) {
        this.name = name;
    }
    
    greet() {
        return `hello ${this.name