golf: assert against Map.get existence;

- 880 gz / 717 br
GoogleChromeLabs · Dec 10, 2018 · 2cd1daf · 2cd1daf
1 parent 47b370d
commit 2cd1daf
Showing 1 changed file with 2 additions and 4 deletions.
diff --git a/src/index.mjs b/src/index.mjs
@@ -23,10 +23,8 @@ const observer = new IntersectionObserver(entries => {
       .filter(entry => entry.isIntersecting)
       .forEach(entry => {
         const url = entry.target.href;
-        if (!loaderFunctions.has(url)) {
-          return;
-        }
-        loaderFunctions.get(url).call(null);
+        const fn = loaderFunctions.get(url);
+        if (fn) fn.call(null);
       });
 });