Performance class

The interface provides access to performance-related information for the current page. It's part of the High Resolution Time API, but is enhanced by the Performance Timeline API, the Navigation Timing API, the User Timing API, and the Resource Timing API. An object of this type can be obtained by calling the window.performance read-only attribute.

Note: This interface and its members are available in Web Workers via WorkerGlobalScope.performance , except where indicated below. Also, note that performance markers and measures are per context. If you create a mark on the main thread (or other worker), you cannot see it in a worker thread, and vice versa.

EventTarget

Performance

Implemented types

• EventTarget

Available extensions

• PropsEventTarget
• PropsPerformance

Annotations

• @JS()
• @staticInterop

Constructors

Performance()

factory

Properties

hashCode → int

The hash code for this object.

no setter, inherited

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

Methods

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

toString() → String

A string representation of this object.

inherited

Operators

operator ==(Object other) → bool

The equality operator.

inherited