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workers API


Workers (also commonly referred to as Web Workers) are scripts that run in the background independently of any user interface scripts. This allows for long-running scripts that are not interrupted by scripts that respond to clicks or other user interactions, and allows long tasks to be executed without yielding to keep the page responsive.

An object representing a worker, that is used to communicate with the worker.
An object representing the identity and state of the user agent (the client).
FormData is an interface that helps to create a set of key-value pairs representing form fields and their values intended to be sent using XMLHttpRequest.


  • Mozilla Developer Network cc-by-sa-small-wpd.svg: Article

  • Microsoft Developer Network: Article