how to loop object keys code example

Example 1: loop through object javascript

var p = {
    "p1": "value1",
    "p2": "value2",
    "p3": "value3"
};

// for-in
for (var key in p) {
    if (p.hasOwnProperty(key)) {
        console.log(key + " -> " + p[key]);
    }
}

// for-of with Object.keys()
for (var key of Object.keys(p)) {
    console.log(key + " -> " + p[key])
}

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

Example 2: javascript loop through object

for (var property in object) {
  if (object.hasOwnProperty(property)) {
    // Do things here
  }
}

Example 3: 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 4: loop key in object

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

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