Navigator.productSub

The Navigator.productSub read-only property returns the build number of the current browser.

Syntax

prodSub = window.navigator.productSub

• prodSub is a string.

Example

<script>
function prodsub() {
  var dt = document.getElementById("d").childNodes[0];
  dt.data = window.navigator.productSub;
}
</script>

<button onclick="prodsub();">productSub</button>
// returns: 20010725

Notes

On IE, this property returns undefined.

On Apple Safari and Google Chrome this property always returns 20030107.

Specifications

Browser compatibility