31 lines
889 B
JavaScript
31 lines
889 B
JavaScript
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export function listen(...listenerSpecs) {
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return new Promise((resolve) => {
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let removeAllEventListeners;
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let listeners = listenerSpecs.map(([element, eventName]) => {
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let listener = (event) => {
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removeAllEventListeners();
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resolve(event);
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};
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element.addEventListener(eventName, listener);
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return { element, eventName, func: listener };
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});
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removeAllEventListeners = () => {
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for (let listener of listeners) {
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listener.element.removeEventListener(listener.eventName, listener.func);
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}
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};
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});
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}
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export function debounce(time, fn) {
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let timeout = null;
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return (...args) => {
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if (timeout == null) {
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fn(...args);
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timeout = setTimeout(() => (timeout = null), time);
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}
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};
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}
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