for in mdn javascript code example

Example 1: js loop over object

const object = {a: 1, b: 2, c: 3};

for (const property in object) {
  console.log(`${property}: ${object[property]}`);
}

Example 2: for in loop javascript

var person = {"name":"taylor","age":31};
for (property in person) {
	console.log(property,person[property]);
}
//name taylor
//age 31

Example 3: forin js

let panier = ['fraise', 'banane', 'poire'];

for (const fruit in panier) {
    console.log(panier[fruit]);
}