Saturday 24 March 2012

Java Script

  • JavaScript was formalized in the ECMAScript language standard and is primarily used in the form of client-side JavaScript, implemented as part of a Web browser in order to provide enhanced user interfaces and dynamic websites.
  • This enables programmatic access to computational objects within a host environment.
  • JavaScript's use in applications outside Web pages — for example in PDF documents, site-specific browsers, and desktop widgets — is also significant.
  • Newer and faster JavaScript VMs and frameworks built upon them (notably Node.js) have also increased the popularity of JavaScript for server-side web applications.
  • JavaScript uses syntax influenced by that of C.
  • JavaScript copies many names and naming conventions from Java, but the two languages are otherwise unrelated and have very different semantics.
  • The key design principles within JavaScript are taken from the Self and Scheme programming languages