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code-server/extensions/markdown-language-features/preview-src/events.ts

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/*---------------------------------------------------------------------------------------------
* Copyright (c) Microsoft Corporation. All rights reserved.
* Licensed under the MIT License. See License.txt in the project root for license information.
*--------------------------------------------------------------------------------------------*/
export function onceDocumentLoaded(f: () => void) {
if (document.readyState === 'loading' || document.readyState as string === 'uninitialized') {
document.addEventListener('DOMContentLoaded', f);
} else {
f();
}
}