Core

Core Internal Words

nop

no op

( -> )

eval

evaluate quote or string

( [A] -> a )

drop

drops the item on the bottom of the stack

( x -> )

> 1 2 3 drop
[ 1 2 ]

swap

swaps the items on the bottom of the stack

( x y -- y x )

dup

duplicates the item on the bottom of the stack

( x -- x x )

unstack

push items in a quote to the stack without evaluation

( [A B C] -> A B C)

length

Outputs the length of the Array, string, or object.

( {seq} -> {number} )

> [ 1 2 3 ] length
3

slice

a shallow copy of a portion of an array or string

( seq from to -> seq )

splitat

splits a array or string

( seq at -> seq )

indexof

returns the position of the first occurrence of a specified value in a sequence

( seq item -> number )

zip

f♭> [ 1 2 3 ] [ 4 5 6 ] zip
[ 1 4 2 5 3 6 ]

zipinto

(

pushes a quotation maker onto the stack

)

collects stack items upto the last quote marker

[

pushes a quotation maker onto the stack, increments depth

]

decrements depth, collects stack items upto the last quote marker

{

pushes a quotation maker onto the stack

}

collects stack items upto the last quote marker, converts to an object

template

converts a string to a string template

sleep

wait x milliseconds

( x -> )

fetch

fetch a url as a string

( {url} -> {string} )