JSFiddle - React, Tailwind, and code Playground

JavaScript

var yourObject = {
  firstName: "Wil",
  lastName: "Smith"
}

for (var key in yourObject) {
  console.log(key)
  // logs "firstName" and "lastName"
}

console.log(yourObject["firstName"])
// logs "Wil"

for (var key in yourObject) {
  console.log(yourObject[key])
  // logs "Wil" and "Smith"
}