object keys foreach javascript code example

Example 1: javascript foreach object keys

var lunch = {
	sandwich: 'ham',
	snack: 'chips',
	drink: 'soda',
	desert: 'cookie',
	guests: 3,
	alcohol: false,
};

Object.keys(lunch).forEach(function (item) {
	console.log(item); // key
	console.log(lunch[item]); // value
});

// returns "sandwich", "ham", "snack", "chips", "drink", "soda", "desert", "cookie", "guests", 3, "alcohol", false

Example 2: object foreach

const obj = {
  name: 'Jean-Luc Picard',
  rank: 'Captain'
};

// Prints "name Jean-Luc Picard" followed by "rank Captain"
Object.keys(obj).forEach(key => {
  console.log(key, obj[key]);
});

Example 3: foreach key value javascript

const object1 = {
  a: 'somestring',
  b: 42
};

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

// expected output:
// "a: somestring"
// "b: 42"
// order is not guaranteed

Example 4: js get object keys

myObject = {
	"key": "value"
}

Object.keys(myObject); // get array of keys

Example 5: js object keys

var myObj = {no:'u',my:'sql'}
var keys = Object.keys(myObj);//returnes the array ['no','my'];