17 lines
506 B
JavaScript
17 lines
506 B
JavaScript
export default (domElement, attributes, timeout = 1500) =>
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new Promise((resolve, reject) => {
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let observer;
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const timeoutId = setTimeout(() => {
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observer.disconnect();
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reject(new Error(`Could not see an attribute update within ${timeout} ms`));
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}, timeout);
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observer = new MutationObserver(() => {
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clearTimeout(timeoutId);
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observer.disconnect();
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resolve();
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});
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observer.observe(domElement, { attributes: true, attributeFilter: attributes });
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});
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