Client-side scripts are interpreted by the browser and executed on the client system. Client-side scripting can be used to make web pages change after they arrive at the browser.

A small program run on the server that automates or controls certain functions or links one program to another. On the Web, a CGI script is an example of a server-side script. Contrast with client ...

Note, this article deals with client-side JavaScript. For a client and server-side JavaScript upload example, check out this File Uploads with Node and JavaScript tutorial.