Add a comment in the code

Add a comment to clarify why we explicitly bind the functions to window.
facebook · Sep 10, 2019 · 2dc1147 · 2dc1147
1 parent 5c6b97d
commit 2dc1147
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/packages/scheduler/src/forks/SchedulerHostConfig.default.js b/packages/scheduler/src/forks/SchedulerHostConfig.default.js
@@ -83,6 +83,8 @@ if (
   const Date = window.Date;
   const setTimeout = window.setTimeout;
   const clearTimeout = window.clearTimeout;
+  // Explicitly bind local references to `window`, in order to support
+  // environments where the global `this` is not the window (e.g extensions)
   const requestAnimationFrame =
     window.requestAnimationFrame && window.requestAnimationFrame.bind(window);
   const cancelAnimationFrame =