/**
 * Performance utilities for DuskMoon custom elements
 *
 * Provides debounce, throttle, and scheduling helpers for
 * optimizing element responsiveness and reducing unnecessary work.
 *
 * @example
 * ```ts
 * import { debounce, throttle, scheduleTask } from '@duskmoon-dev/el-base';
 *
 * class MySearch extends BaseElement {
 *   #search = debounce((query: string) => {
 *     this.emit('search', { query });
 *   }, 300);
 *
 *   #handleScroll = throttle(() => {
 *     this._updatePosition();
 *   }, 100);
 * }
 * ```
 */
/**
 * Creates a debounced function that delays invocation until after
 * `delay` milliseconds have elapsed since the last call.
 *
 * Returns a function with a `.cancel()` method to abort pending execution.
 */
export declare function debounce<T extends (...args: Parameters<T>) => void>(fn: T, delay: number): T & {
    cancel: () => void;
};
/**
 * Creates a throttled function that invokes at most once per `interval` ms.
 * Uses leading-edge execution: fires immediately, then suppresses until interval passes.
 *
 * Returns a function with a `.cancel()` method to abort pending execution.
 */
export declare function throttle<T extends (...args: Parameters<T>) => void>(fn: T, interval: number): T & {
    cancel: () => void;
};
/**
 * Schedule a low-priority task using requestIdleCallback (with fallback).
 * Useful for deferring non-critical work like analytics, preloading, or cleanup.
 *
 * @returns A cancel function
 */
export declare function scheduleIdle(callback: () => void, options?: {
    timeout?: number;
}): () => void;
//# sourceMappingURL=performance.d.ts.map