Hop.js is a multitier programming environment for JavaScript. It
allows a single JavaScript program to describe the client-side and the
server-side components of a web application. Its runtime environment
ensures consistent executions of the application on the server and on
the client.
This paper overviews the Hop.js design. It shows the JavaScript
extensions that makes it possible to conceive web applications
globally. It presents how Hop.js interacts with the outside world. It
also briefly presents the Hop.js implementation. It presents the
Hop.js web server implementation, the handling of server-side
parallelism, and the JavaScript and HTML compilers.