how i can loop in the object with for in loop in js code example

Example 1: javascript loop through object example

var person={
 	first_name:"johnny",
  	last_name: "johnson",
	phone:"703-3424-1111"
};
for (var property in person) {
  	console.log(property,":",person[property]);
}

Example 2: object iterate in javascript

for (let [key, value] of Object.entries(yourobject)) {
    console.log(key, value);
}