diff --git a/js/anchorlinks.js b/js/anchorlinks.js
index 9a7655848a..088a0a1e49 100644
--- a/js/anchorlinks.js
+++ b/js/anchorlinks.js
@@ -1,12 +1,8 @@
-(function(d) {
-	"use strict";
-	var hs = d.querySelectorAll("H1, H2, H3"), h;
-
-	for (var i = 0; i < hs.length; i++) {
-		h = hs[i];
-		if (h.id != null && h.id.length > 0) {
-			h.insertAdjacentHTML('beforeend', '<a href="#' + h.id + '" class="anchorLink">🔗</a>')
-		}
-	}
-
+(function (d) {
+    "use strict";
+    for (const h of d.querySelectorAll("H1, H2, H3")) {
+        if (h.id != null && h.id.length > 0) {
+            h.insertAdjacentHTML('beforeend', `<a href="#${h.id}" class="anchorLink">🔗</a>`)
+        }
+    }
 })(document);