There are different ways of implementing data communication between a client and server. Flash, Comet, PusherApp, and so on provide us with the features needed to implement the data communication which WebSockets provides. Then the question arises that why should we go with WebSockets? There are many reasons for picking WebSockets over other methods, some of which are as follows:
In comparison to other means of data communication, WebSockets exhibits low latency, which decreases from nearly 150 ms to 50 ms.
WebSockets is a lightweight connection and uses low bandwidth.
It requires lesser developer effort in terms of learning and implementation in different technologies.
Ease of compilation when different technologies are used.
Code maintenance becomes easy with WebSockets.
WebSockets offers full-duplex connection support without much overhead.