25 lines
661 B
JavaScript
25 lines
661 B
JavaScript
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/**
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* Simple script loader that returns a promise.
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*/
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export default function loadScript(url) {
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return new Promise((resolve, reject) => {
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let done = false;
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const head = document.getElementsByTagName('head')[0];
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const script = document.createElement('script');
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script.src = url;
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script.onload = script.onreadystatechange = function() {
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if (
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!done &&
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(!this.readyState || this.readyState === 'loaded' || this.readyState === 'complete')
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) {
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done = true;
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resolve();
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} else {
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reject();
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}
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};
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script.onerror = error => reject(error);
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head.appendChild(script);
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});
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}
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