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A BrowserSetting object that can be used to control the position of newly opened tabs relative to already open tabs.

The newValue read-only property of the MutationEvent interface returns a string. In DOMAttrModified events, it represents the new value of the Attr node. In DOMCharacterDataModified events, it contains the new value of the CharacterData node. In all other cases, returns the empty string ("").

An API (Application Programming Interface) is a set of features and rules that exist inside a software program (the application) enabling interaction with it through software - as opposed to a human user interface. The API can be seen as a simple contract (the interface) between the application offering it and other items, such as third-party software or hardware.

The Navigation API provides the ability to initiate, intercept, and manage browser navigation actions. It can also examine an application's history entries. This is a successor to previous web platform features such as the History API and window.location, which solves their shortcomings and is specifically aimed at the needs of single-page applications (SPAs).

The Presentation API lets a user agent (such as a Web browser) effectively display web content through large presentation devices such as projectors and network-connected televisions. Supported types of multimedia devices include both displays which are wired using HDMI, DVI, or the like, or wireless, using DLNA, Chromecast, AirPlay, or Miracast.

The URL API is a component of the URL standard, which defines what constitutes a valid Uniform Resource Locator and the API that accesses and manipulates URLs. The URL standard also defines concepts such as domains, hosts, and IP addresses, and also attempts to describe in a standard way the legacy application/x-www-form-urlencoded MIME type used to submit web forms' contents as a set of key/value pairs.

The Summarizer API summarizes a given body of text via a browser's internal AI model (which may differ between browsers).

The Notifications API allows web pages to control the display of system notifications to the end user. These are outside the top-level browsing context viewport, so therefore can be displayed even when the user has switched tabs or moved to a different app. The API is designed to be compatible with existing notification systems, across different platforms.

The Selection API enables developers to access and manipulate the portion of a document selected by the user.

New Relic's Prometheus OpenMetrics Integration