examples/bower_components/polymer/polymer.js
function(touch) {
      var dx = Math.abs(x - touch.x), dy = Math.abs(y - touch.y);
      return (dx <= DEDUP_DIST && dy <= DEDUP_DIST);
    }
function(touch) {
      var dx = Math.abs(x - touch.x), dy = Math.abs(y - touch.y);
      return (dx <= DEDUP_DIST && dy <= DEDUP_DIST);
    }
function ( touch ) { var dx = Math . abs ( x - touch . x ) , dy = Math . abs ( y - touch . y ) ; return ( dx <= DEDUP_DIST && dy <= DEDUP_DIST ) ; }
check if a click is within DEDUP_DIST px radius of the touchstart
check if a click is within DEDUP_DIST px radius of the touchstart