WMLScript

WMLScript is a small procedural scripting language built for the early mobile web. It was defined as part of the Wireless Application Protocol, the family of standards that let phones of the late 1990s show pages written in the Wireless Markup Language. It is described as a dialect of JavaScript and is based on ECMAScript, so its syntax looks familiar to a JavaScript programmer, although it is not fully compatible with it. A script is called from a WML page and runs on the client, where it handles jobs such as checking user input and showing error messages and dialog boxes. The language leaves out objects and arrays, can declare and include external functions from other scripts, and is optimized for low power consumption, with scripts compiled to bytecode. The first version appeared on April 30, 1998, version 1.1 followed in June 1999, version 1.2 in June 2000, and a consolidated edition in October 2001 that unified the specification without adding a new version.