lib/data/d3.js
function l(e) {
      var o = d3.event; // Events can be reentrant (e.g., focus).
      d3.event = e;
      try {
        listener.call(node, node.__data__, i);
      } finally {
        d3.event = o;
      }
    }
function l(e) {
      var o = d3.event; // Events can be reentrant (e.g., focus).
      d3.event = e;
      try {
        listener.call(node, node.__data__, i);
      } finally {
        d3.event = o;
      }
    }
function l ( e ) { var o = d3 . event ; // Events can be reentrant (e.g., focus). d3 . event = e ; try { listener . call ( node , node . __data__ , i ) ; } finally { d3 . event = o ; } }
wrapped event listener that preserves i
wrapped event listener that preserves i