Javascript Browser Storage key() Method

Introduction

Get the name of the first local storage item: 

var x = localStorage.key(0);

This example demonstrates how to use the key() method to get the name of a local storage item.

View in separate window 

<!DOCTYPE html>
<html>
<body>
<button onclick="myFunction()">Get the name of the first local storage item</button>

<p id="demo"></p>

<script>

function myFunction() {/*from   ww w. j a  v  a 2s.co  m*/
  var x = localStorage.key(0);
  document.getElementById("demo").innerHTML = x;
}

</script>
</body>
</html>

The key() method returns name of the key with the specified index.

The key() method belongs to the Storage Object, which can be either a localStorage object or a sessionStorrage object. 

key(index);

Parameter Values

Parameter Description
index Required. A Number representing the index of the key you want to get the name of



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