nexttick-browser: minor.

2017-06-26 03:38:08 -07:00 · 2017-06-26 03:38:08 -07:00 · 03303d670d
commit 03303d670d
parent 6875fc99c6
1 changed files with 3 additions and 0 deletions
--- a/lib/utils/nexttick-browser.js
+++ b/lib/utils/nexttick-browser.js
@ -96,6 +96,9 @@ function hasSetImmediate() {

 function installSetImmediate() {
  return function nextTick(handler) {
+    if (typeof handler !== 'function')
+      throw new Error('callback must be a function.');
+
    setImmediate(handler);
  };
 }