To create a custom object in JavaScript, try the following code
Example
Live Demo
<!DOCTYPE html>
<html>
<body>
<p id="test"></p>
<script>
var dept = new Object();
dept.employee = "Amit";
dept.department = "Technical";
dept.technology ="Java";
document.getElementById("test").innerHTML =
dept.employee + " is working on " + dept.technology + " technology.";
</script>
</body>
</html>