anchor.diff:      (if action
   	(funcall action str)
   	(prop string.prototype key default))))
  +
  +(finish-class-construction "String" string.ctor string.prototype)
   
   ;;
   (defun js-number? (o)
  
positive.code:       (set-default js-user::this func)
        func)))
  
  (setf (prop function.prototype "constructor") function.ctor)
  
  (defmethod placeholder-class ((func (eql function.ctor))) 'native-function)
  
  (setf (prop function.ctor "prototype") function.prototype)
  (setf (prop *global* "Function") function.ctor)
  
  ;;
  (defclass arguments (native-hash)
  
negative.code:     (if action
  	(funcall action num)
  	(prop number.prototype key default))))
  
  (finish-class-construction "Number" number.ctor number.prototype)
  
  ;;
  (defclass math (native-hash)
  