@taiga-ui/event-plugins/esm2022/plugins/throttle.plugin.mjs

This is a library for optimizing performance sensitive events and declarative preventDefault and stopPropagation

import { TimedEventPlugin } from './timed-event.plugin';
export class ThrottleEventPlugin extends TimedEventPlugin {
    constructor() {
        super(...arguments);
        this.regExp = /\.throttle~(?<time>\d+)(?<units>ms|s)/;
    }
    addEventListener(element, eventName, handler) {
        let timeout;
        const unsubscribe = this.manager.addEventListener(element, this.unwrap(eventName), (event) => {
            if (timeout !== undefined) {
                return;
            }
            handler(event);
            timeout = setTimeout(() => {
                timeout = undefined;
            }, this.getDelay(eventName));
        });
        return () => {
            clearTimeout(timeout);
            unsubscribe();
        };
    }
}
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