<html>
<body>
<p>You can declare many variables in one statement:</p>
<button onclick="myFunction()">Try it</button>
<p id="demo"></p>
<script>
function myFunction() {
var lastName = "Doe",
age = 30,
job = "carpenter";
document.getElementById("demo").innerHTML = "Name: " + lastName + ". Age: " + age + ". Work: " + job;
}
</script>
</body>
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</html>