Javascript can declare anonymous function and call it at the same time using the following syntax:
(function (arg1, arg2, ...) {
}) (arg1, arg2, ...);
Alternatively we can also use the following syntax using exclamation mark preceding function keyword.
!function (arg1, arg2, ...) {
} (arg1, arg2, ...);
Example – involve anonymous function using brackets
<script>
(function (name) {
document.write("Hello " + name);
console.log("hello " + name);
}) ("John");
</script>Example – involve anonymous function using exclamation mark
<script>
!function (name) {
document.write("Hello " + name);
console.log("hello " + name);
} ("John");
</script>
