'use strict';
// ECMAScript 2017
const object = {'a': 1, 'b': 2, 'c' : 3};
for (const [key, value] of Object.entries(object)) {
console.log(key, value);
}for (const [key, value] of Object.entries(object1)) {
console.log(`${key}: ${value}`);
}
var person={
first_name:"johnny",
last_name: "johnson",
phone:"703-3424-1111"
};
for (var property in person) {
console.log(property,":",person[property]);
}const fruits = { apple: 28, orange: 17 }
for(key in fruits){
console.log(key)
}