array iteration es6 code example

Example 1: javascript loop through array of objects es6

/* new options with IE6: loop through array of objects */

const people = [
  {id: 100, name: 'Vikash'},
  {id: 101, name: 'Sugam'},
  {id: 102, name: 'Ashish'}
];

// using for of
for (let persone of people) {
  console.log(persone.id + ': ' + persone.name);
}

// using forEach(...)
people.forEach(person => {
 console.log(persone.id + ': ' + persone.name);
});
// output of above two methods
// 100: Vikash
// 101: Sugam
// 102: Ashish


// forEach(...) with index
people.forEach((person, index) => {
 console.log(index + ': ' + persone.name);
});
// output of above code in console
// 0: Vikash
// 1: Sugam
// 2: Ashish

Example 2: loop through arrays in es6

var sandwiches = [
	'tuna',
	'ham',
	'turkey',
	'pb&j'
];

sandwiches.forEach(function (sandwich, index) {
	console.log(index);
	console.log(sandwich);
});

// returns 0, "tuna", 1, "ham", 2, "turkey", 3, "pb&j"