Multiplication Assignment Operator (*=)multiplies the right operand with the left operand and assigns the result to the left operand.
Example
You can try to run the following code to learn how to work with Multiplication Assignment Operator −
<html>
<body>
<script>
var a = 33;
var b = 10;
document.write("Value of a => (a *= b) => ");
result = (a *= b);
document.write(result);
</script>
</body>
</html>