demo/www/lib/ionic/js/ionic.bundle.js
function HashMap(array, isolatedUid) {
  if (isolatedUid) {
    var uid = 0;
    this.nextUid = function() {
      return ++uid;
    };
  }
  forEach(array, this.put, this);
}
function HashMap(array, isolatedUid) {
  if (isolatedUid) {
    var uid = 0;
    this.nextUid = function() {
      return ++uid;
    };
  }
  forEach(array, this.put, this);
}
function HashMap ( array , isolatedUid ) { if ( isolatedUid ) { var uid = 0 ; this . nextUid = function ( ) { return ++ uid ; } ; } forEach ( array , this . put , this ) ; }
HashMap which can use objects as keys
HashMap which can use objects as keys