Let's add setTimeout to our example:
In the example given above, even though console.log("Hello") comes after the invocation of searchOnGoogle, the messages are displayed in a different order.
This is because of the setTimeout in the searchOnGoogle function.
It starts a timer that runs in the background. After 2 seconds, it displays the message.
While the timer is running, console.log("Hello") is executed.
Such code that runs in the background
while the rest of the code is being executed
is called asynchronous code.