Class LFocus

Object
   |
   +--Lens
         |
         +--LFocus

class LFocus

extends Lens

Focuses concrete tree on a single property, projecting away all other properties of the object. If, on putback, the property comes back undefined, then a default value will be substituted.
Defined in lens.js

Field Detail

name

Object name

LFocus

LFocus(<String> prop, d)

Parameters:
prop - The property on which to focus
d - The default value, if the abstract tree is undefined