The NamedNodeMap.getNamedItem() method returns the Attr corresponding to the given name, or null if there is no corresponding attribute.
Returns a string that identifies the current operating system.
Returns a PluginArray object, listing the plugins installed in the application.
The NonDocumentTypeChildNode interface contains methods that are particular to Node objects that can have a parent, but not suitable for DocumentType.
Page transition events fire when a webpage is being loaded or unloaded.
The RandomSource.getRandomValues() method lets you get cryptographically random values. The array given as the parameter is filled with random numbers (random in its cryptographic meaning).
RenderingContext is a helper type representing any of the following rendering contexts CanvasRenderingContext2D, WebGLRenderingContext or WebGL2RenderingContext (which inherits from WebGLRenderingContext).
This Boolean attribute controls the device's screen. Setting it to false will turn off the screen.
Returns the location of the stylesheet.
ownerNode returns the node that associates this style sheet with the document.
Returns the stylesheet that is including this one, if any.
title returns the advisory title of the current style sheet.
type specifies the style sheet language for this style sheet.
The TextMetrics interface represents the dimension of a text in the canvas, as created by the CanvasRenderingContext2D.measureText() method.
The UIEvent() constructor creates a new UIEvent.
getDefaultComputedStyle() gives the default computed values of all the CSS properties of an element, ignoring author styling.  That is, only user-agent and user styles are taken into account.
The window.postMessage method safely enables cross-origin communication. Normally, scripts on different pages are allowed to access each other if and only if the pages that executed them are at locations with the same protocol (usually both https), port number (443 being the default for https), and host (modulo document.domain being set by both pages to the same value). window.postMessage provides a controlled mechanism to circumvent this restriction in a way which is secure when properly used.
This method is used to break up long running operations and run a callback function immediately after the browser has completed other operations such as events and display updates.