WindowOrWorkerGlobalScope

Returns the CacheStorage object associated with the current context. This object enables functionality such as storing assets for offline use, and generating custom responses to requests.

Accepts a variety of different image sources, and returns a Promise which resolves to an ImageBitmap. Optionally the source is cropped to the rectangle of pixels originating at (sx, sy) with width sw, and height sh.

Returns a boolean value that indicates whether a SharedArrayBuffer can be sent via a Window.postMessage() call.

Starts the process of fetching a resource from the network.

Provides a mechanism for applications to asynchronously access capabilities of indexed databases.

Returns a boolean indicating whether the current context is secure or not.

Returns the origin of the global scope, serialized as a string.

Enqueues a microtask—a short function to be executed after execution of the JavaScript code completes and control isn't being returned to a JavaScript caller, but before handling callbacks and other tasks.

This lets your code run without interfering with other, possibly higher priority, code, but before the browser runtime regains control, potentially depending upon the work you need to complete.

Decodes a string of data which has been encoded using base-64 encoding.

Creates a base-64 encoded ASCII string from a "string" of binary data.

Cancels repeated action which was set up using setInterval.

Clears the delay set by window.setTimeout().

Calls a function or executes a code snippet repeatedly, with a fixed time delay between each call to that function.

Calls a function or executes a code snippet after a specified delay.