javascript is the most important language you can learn. Years ago, you could produce a web site with HTML alone. Now, javascript is a critical technology that makes not just interactive web sites– but full web applications. Modern sites don't just display data but generally help users complete tasks such as making a reservation or buy an item.javascript is a critical part of these transactions.

Handling everything from dynamic screen content to interacting with remote servers, every developer needs javascript.And, javascript is not just a web language any more. Due to related technologies like Node and Phone Gap javascript can now be used in web development (client and server side) and mobile development.This is only part of the reason that javascript is THE language to know. javascript is the most desired skill among those who hire new (junior) developers.