What are the limitations of JavaScript?

JavaScript is a lightweight, interpreted programming language. It is designed for creating network-centric applications. It is complementary to and integrated with Java. It is very easy to implement because it is integrated with a HTML. It is open and cross-platform.

We cannot treat JavaScript as a full-fledged programming language. It lacks the following important features:

  • Client-side JavaScript does not allow the reading or writing of files. It has been kept for the security reason.
  • JavaScript could not used for networking applications because there is no such support available.
  • JavaScript doesn't have any multithreading or multiprocessor capabilities.