code: function dotOperatorAttributeRead (attributeName, obj) {
        var attr
  
        if (obj) attr = obj[attributeName]
  
        if (typeof attr === 'function') return attr.bind(obj)
  
        return attr
      }
docs: Dot operator attribute read.
  
  @param {String} attributeName
  @param {Object} obj
  
  @returns {*} attribute