From b0d4cc7006fcc72da0bd35f2281761e26caee096 Mon Sep 17 00:00:00 2001
From: zepumph <michael.kauzmann@colorado.edu>
Date: Wed, 27 Feb 2019 13:46:22 -0900
Subject: [PATCH] remove emit1(), use emit() instead,
 https://github.com/phetsims/axon/issues/211

---
 js/Emitter.js | 11 -----------
 js/timer.js   |  2 +-
 2 files changed, 1 insertion(+), 12 deletions(-)

diff --git a/js/Emitter.js b/js/Emitter.js
index fcd02d9d..0241b69e 100644
--- a/js/Emitter.js
+++ b/js/Emitter.js
@@ -282,17 +282,6 @@ define( require => {
       this.isPhetioInstrumented() && this.phetioEndEvent();
     }
 
-    /**
-     * Emits a single event with one argument.
-     * @param {*} arg0
-     * @public
-     * @deprecated - please use emit()
-     */
-    emit1( arg0 ) {
-      this.validationEnabled = false; // Disable validation until emit() is used properly
-      this.emit( arg0 );
-    }
-
     /**
      * Checks whether a listener is registered with this Emitter
      * @param {function} listener
diff --git a/js/timer.js b/js/timer.js
index b4b3b485..e8746b58 100644
--- a/js/timer.js
+++ b/js/timer.js
@@ -94,5 +94,5 @@ define( require => {
   }
 
   // Register and return a singleton
-  return axon.register( 'timer', new Timer() );
+  return axon.register( 'timer', new Timer( { validators: [ { valueType: 'number' } ] } ) );
 } );
\ No newline at end of file