Untitled

<!DOCTYPE html>
<html>

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

  <body>
    <h1>Hello Plunker!</h1>
  </body>

</html>

// Code goes here

var FirstArr=[
              {
                "id":"123",
                "aboutUS":"Demo About Us"
              },
              {
                "id":"234",
                 "tutorial":"Demo Tutorial"
              }
             ];
var SecondArr=[
               {
            "data":"aboutUS"
               },
           {
        "data":"toturial"
           }
              ];
              
              
var sTemp=SecondArr[0].data;

var temp=FirstArr[0][sTemp];

console.log(temp);

/* Styles go here */