The OffscreenCanvas() constructor returns a newly instantiated OffscreenCanvas object.
The PerformanceObserver() constructor creates a new PerformanceObserver object with the given observer callback. The observer callback is invoked when performance entry events are recorded for the entry types that have been registered, via the observe() method.
The Response() constructor creates a new Response object.
The TouchEvent() constructor creates a new TouchEvent.
The Uint8Array typed array represents an array of 8-bit unsigned integers. The contents are initialized to 0. Once established, you can reference elements in the array using the object's methods, or using standard array index syntax (that is, using bracket notation).
The WheelEvent() constructor returns a newly created FocusEvent object.
The Worker() constructor creates a Worker object that executes the script at the specified URL. This script must obey the same-origin policy.
The GeneratorFunction constructor creates a new generator function object. In JavaScript every generator function is actually a GeneratorFunction object.
The Int8Array typed array represents an array of twos-complement 8-bit signed integers. The contents are initialized to 0. Once established, you can reference elements in the array using the object's methods, or using standard array index syntax (that is, using bracket notation).
The RegExp constructor creates a regular expression object for matching text with a pattern.