diff --git a/runtime/JavaScript/src/antlr4/atn/ParserATNSimulator.js b/runtime/JavaScript/src/antlr4/atn/ParserATNSimulator.js
index 3bb12eaea..90f16d409 100644
--- a/runtime/JavaScript/src/antlr4/atn/ParserATNSimulator.js
+++ b/runtime/JavaScript/src/antlr4/atn/ParserATNSimulator.js
@@ -1385,7 +1385,7 @@ ParserATNSimulator.prototype.canDropLoopEntryEdgeInLeftRecursiveRule = function(
 
         // Look for complex prefix 'between expr and expr' case where 2nd expr's
         // return state points at block end state of (...)* internal block
-        if (returnStateTarget.stateType == ATNState.BLOCK_END && returnStateTarget.transitionslength == 1
+        if (returnStateTarget.stateType == ATNState.BLOCK_END && returnStateTarget.transitions.length == 1
                 && returnStateTarget.transitions[0].isEpsilon && returnStateTarget.transitions[0].target == p)
             continue;
 
diff --git a/runtime/JavaScript/src/input b/runtime/JavaScript/src/input
deleted file mode 100644
index feab4548e..000000000
--- a/runtime/JavaScript/src/input
+++ /dev/null
@@ -1 +0,0 @@
-a=b+1;
\ No newline at end of file
diff --git a/runtime/JavaScript/src/test.js b/runtime/JavaScript/src/test.js
deleted file mode 100644
index fb1d9eacc..000000000
--- a/runtime/JavaScript/src/test.js
+++ /dev/null
@@ -1,42 +0,0 @@
-var antlr4 = require('./antlr4/index');
-var DesignScriptLexer = require('./DesignScriptLexer');
-var DesignScriptParser = require('./DesignScriptParser');
-var DesignScriptListener = require('./DesignScriptListener').DesignScriptListener;
-// var TVisitor = require('./parser/TVisitor').TVisitor;
-
-function TreeShapeListener() {
-	antlr4.tree.ParseTreeListener.call(this);
-	return this;
-}
-
-TreeShapeListener.prototype = Object.create(antlr4.tree.ParseTreeListener.prototype);
-TreeShapeListener.prototype.constructor = TreeShapeListener;
-
-TreeShapeListener.prototype.enterEveryRule = function(ctx) {
-	for(var i=0;i<ctx.getChildCount; i++) {
-		var child = ctx.getChild(i);
-       var parent = child.parentCtx;
-       if(parent.getRuleContext() !== ctx || !(parent instanceof antlr4.tree.RuleNode)) {
-           throw "Invalid parse tree shape detected.";
-		}
-	}
-};
-
-function main(argv) {
-	PORT_DEBUG =true 
-    var input = new antlr4.FileStream(argv[2]);
-    var lexer = new DesignScriptLexer.DesignScriptLexer(input);
-    var stream = new antlr4.CommonTokenStream(lexer);
-	var parser = new DesignScriptParser.DesignScriptParser(stream);
-    parser.buildParseTrees = true;
-	printer = function() {
-		this.println = function(s) { console.log(s); }
-		this.print = function(s) { process.stdout.write(s); }
-		return this;
-	};
-    parser.printer = new printer();
-    var tree = parser.program();
-    antlr4.tree.ParseTreeWalker.DEFAULT.walk(new TreeShapeListener(), tree);
-}
-
-main(process.argv);