check arguemnt

mucbuc · Jul 27, 2013 · b0e8d45 · b0e8d45
1 parent 4463dd7
commit b0e8d45
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/lib/vec.js b/lib/vec.js
@@ -47,7 +47,7 @@ Written by: Mark Busenitz, [email protected]
  exports.Vec = Vec;
 
  exports.$V = function( a ) {
- return new Vec( a[0], a[1] );
+ return instanceof a == Array ? new Vec( a[0], a[1] ) : Vec.Zero;
  };
 
 } )();