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nolanlawson/stats.js

Created May 10, 2021 04:04
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Count stats on a web page
Raw
stats.js
({
numNodes: $$('*').length,
numCustomElements: $$('*').filter(_ => customElements.get(_.tagName.toLowerCase())).length,
numUniqueCustomElements: [...new Set([...$$('*').map(_ => _.tagName.toLowerCase())])].filter(_ => customElements.get(_)).length,
numRulesWithoutCrossOrigin: [...document.styleSheets].map(_ => { try { return _.cssRules.length } catch (e) { return 0 }}).reduce((a, b) => a + b, 0)
})
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