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77 lines
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<a href="index.html" class="jsdoc-navbar-package-name">whatsapp-web.<wbr>js 1.<wbr>34.<wbr>7</a>
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<h1>Source: util/Puppeteer.js</h1>
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<pre class="prettyprint linenums"><code>/**
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* Expose a function to the page if it does not exist
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*
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* NOTE:
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* Rewrite it to 'upsertFunction' after updating Puppeteer to 20.6 or higher
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* using page.removeExposedFunction
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* https://pptr.dev/api/puppeteer.page.removeexposedfunction
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*
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* @param {object} page - Puppeteer Page instance
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* @param {string} name
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* @param {Function} fn
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*/
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async function exposeFunctionIfAbsent(page, name, fn) {
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const exist = await page.evaluate((name) => {
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return !!window[name];
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}, name);
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return;
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await page.exposeFunction(name, fn);
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}
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module.exports = { exposeFunctionIfAbsent };
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</code></pre>
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