Create element_count.js (#158)

Per HTTPArchive/httparchive.org#141
HTTPArchive · Apr 27, 2019 · 7f62119 · 7f62119
1 parent 12def8a
commit 7f62119
Showing 1 changed file with 12 additions and 0 deletions.
diff --git a/custom_metrics/element_count.js b/custom_metrics/element_count.js
@@ -0,0 +1,12 @@
+return JSON.stringify(
+  Array.from(
+    document
+      .querySelectorAll('*'))
+      .reduce((acc, el) => {
+        let tag = el.tagName.toLowerCase()
+        acc[tag] = (typeof acc[tag] !== 'undefined') ? acc[tag] : 0
+        acc[tag]++
+        return acc 
+      }, {}
+  )
+)