jscons

the familiar lisp cons in JS, with some Clojuretastic extras.
an experiment for use with seq-fns.

Installation

npm install jscons

var Cons = require('jscons')

a Cons is either instanceof Cons or null.

$3

Constructs a Cons from a head and tail. Ye olde (cons head tail).
If the tail is a List, this will be a List too.

$3

Constructs a Seq from an array-like.

$3

Returns a boolean indicating whether cons is a Cons.

$3

Returns the head of the cons.

$3

Returns the tail of the cons.

var List = require('cons/list')

a List is either a cons of a value and another List, or null.
by definition, a List is a Cons.

$3

Constructs a List from a head and another list.
Ye olde (cons head tail), but throws if the tail isn't a List.

$3

Returns a boolean indicating whether list is a List.

$3

Constructs a List from an array-like.

$3

Does nothing for a list.

var Seq = require('cons/seq')

a Seq is either a cons of a value and another List, or null.
by definition, a Seq is a List, though a lazy one.

The tail is constructed the first time it is asked for, by calling the tailFn.

$3

Constructs a Seq from a head and a tail thunk.

$3

Constructs a Seq from an array-like. Because a Seq is lazy, the elements are only taken out of the array when asked for.

$3

Forces the entire Seq to be constructed.