29 lines
1022 B
JavaScript
29 lines
1022 B
JavaScript
const jsesc = require("jsesc");
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const { escape } = require("html-escaper");
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/**
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* Returns a string that represents the javascript that is required to insert the Google Analytics scripts
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* into a webpage.
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* @param {string} tagId Google UA/G/AW/DC Property ID to use with the Google Analytics script.
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* @returns {string} HTML script tags to inject into page
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*/
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function getGoogleAnalyticsScript(tagId) {
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let escapedTagIdJS = jsesc(tagId, { isScriptContext: true });
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if (escapedTagIdJS) {
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escapedTagIdJS = escapedTagIdJS.trim();
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}
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// Escape the tag ID for use in an HTML attribute.
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let escapedTagIdHTMLAttribute = escape(tagId);
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return `
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<script async src="https://www.googletagmanager.com/gtag/js?id=${escapedTagIdHTMLAttribute}"></script>
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<script>window.dataLayer = window.dataLayer || []; function gtag(){dataLayer.push(arguments);} gtag('js', new Date());gtag('config', '${escapedTagIdJS}'); </script>
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`;
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}
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module.exports = {
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getGoogleAnalyticsScript,
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};
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