another IE11 fix: avoid Array.prototype.findIndex

Signed-off-by: Christopher Hiller <[email protected]>

Author: boneskull

lib/runner.js

@@ -192,15 +192,18 @@ Runner.prototype._addEventListener = function(target, eventName, listener) {
  * @param fn {function}
  */
 Runner.prototype._removeEventListener = function(target, eventName, listener) {
-  var eventListenerIndex = this._eventListeners.findIndex(function(
-    eventListenerDescriptor
-  ) {
-    return (
+  var eventListenerIndex = -1;
+  for (var i = 0; i < this._eventListeners.length; i++) {
+    var eventListenerDescriptor = this._eventListeners[i];
+    if (
       eventListenerDescriptor[0] === target &&
       eventListenerDescriptor[1] === eventName &&
       eventListenerDescriptor[2] === listener
-    );
-  });
+    ) {
+      eventListenerIndex = i;
+      break;
+    }
+  }
   if (eventListenerIndex !== -1) {
     var removedListener = this._eventListeners.splice(eventListenerIndex, 1)[0];
     removedListener[0].removeListener(removedListener[1], removedListener[2]);