for key in object code example

Example 1: javascript loop object

let obj = {
  key1: "value1",
  key2: "value2",
  key3: "value3"
}

Object.keys(obj).forEach(key => {
    console.log(key, obj[key]);
});
// key1 value1
// key2 value2
// key3 value3

// using for in - same output as above
for (let key in obj) {
  let value = obj[key];
  console.log(key, value);
}

Example 2: 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 3: javascript iterate object

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

Example 4: loop key in object

const fruits = { apple: 28, orange: 17 }

for(key in fruits){
	console.log(key)
}

Example 5: for key value in object javascript

for (const [key, value] of Object.entries(object1)) {
  console.log(`${key}: ${value}`);
}

Example 6: object for loop

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

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