ES6 for...of feature sample code.

<!DOCTYPE html>
<html>

  <head>
    <link rel="stylesheet" href="style.css">
    <script src="script.js"></script>
  </head>

  <body>
    
  </body>

</html>

const arry = [
    { name: 'Murat', surname: 'Öner', age: 27 },
    { name: 'Sakine', surname: 'Öner', age: 23 },
]

for( const item of arry ) {
	document.write(`<b>Ad:</b> ${item.name}<br>`)
}

Detail for other ES6 features http://www.muratoner.net/?p=107305