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    Interface EventCounts

    The EventCounts interface of the Performance API provides the number of events that have been dispatched for each event type.

    MDN Reference

    interface EventCounts {
        size: number;
        "[iterator]"(): MapIterator<[string, number]>;
        entries(): MapIterator<[string, number]>;
        forEach(
            callbackfn: (value: number, key: string, parent: EventCounts) => void,
            thisArg?: any,
        ): void;
        get(key: string): number | undefined;
        has(key: string): boolean;
        keys(): MapIterator<string>;
        values(): MapIterator<number>;
    }

    Hierarchy

    • ReadonlyMap<string, number>
      • EventCounts
    Index

    Properties

    size: number

    Methods

    • Returns an iterable of entries in the map.

      Returns MapIterator<[string, number]>

    • Returns an iterable of key, value pairs for every entry in the map.

      Returns MapIterator<[string, number]>

    • Parameters

      • callbackfn: (value: number, key: string, parent: EventCounts) => void
      • OptionalthisArg: any

      Returns void

    • Parameters

      • key: string

      Returns number | undefined

    • Parameters

      • key: string

      Returns boolean