const user = {
  name: "Agboola Jude",
  password: "*****",
  [Symbol.iterator]: function () {
    const o = this;
    let idx = 0;
    const keys = Object.keys(o);
    return {
      next: function () {
        return{
          value: o[keys[idx++]],
          done : (idx > keys.length)
        }
      }
    }
  }
}

//for-of now works!!
for(const value of user) console.log(value)
//"Agboola Jude"
//"*****"