versions/0.2.2/oj.js
function(){
        var json = {},
          prop,
          ix = 0
        for (;ix < this.properties.length; ix++){
          prop = this.properties[ix]
          json[prop] = this[prop]
        }
        return json
      }
function(){
        var json = {},
          prop,
          ix = 0
        for (;ix < this.properties.length; ix++){
          prop = this.properties[ix]
          json[prop] = this[prop]
        }
        return json
      }
function ( ) { var json = { } , prop , ix = 0 for ( ; ix < this . properties . length ; ix ++ ) { prop = this . properties [ ix ] json [ prop ] = this [ prop ] } return json }
toJSON: Use properties to generate json
toJSON : Use properties to generate json