Class LLength

Object
   |
   +--Lens
         |
         +--LLength

class LLength

extends Lens

Gets the length of a list. On putback, it configurably adds and deletes elements from the list on putback.
Defined in lens.js

Field Detail

name

Object name

LLength

LLength(<'beginning',> take_from, <'beginning',> add_to, d)

Parameters:
take_from - Where to take elements from that would make the list too long. The default is 'end'.
add_to - Where to add additional elements for compensatory lengthening; default is 'end'. If take_from is specified but no value is given for add_to, then it defaults to take_from's value.
d - The value to use during lengthening instead of undefined.

get

Object get(c)

putback

Object putback(a, c)