Builtin functions

Builtin functions live under @core.

Function	Meaning
@core.join(list, sep)	Join scalar list elements with a separator.
@core.to-json(value)	Render compact JSON.
@core.b64-encode(string)	Base64-encode a string.
@core.b64-decode(string)	Base64-decode a string.
@core.range(n)	Return integers from 0 through n - 1.
@core.length(value)	Return the length of a string, list, or map.
@core.all(list(boolean))	Return true when every element is true.
@core.any(list(boolean))	Return true when at least one element is true.
@core.merge(objects...)	Merge objects left to right.
@core.to-integer(value)	Convert a number or numeric string to an integer.
@core.to-number(value)	Convert an integer or numeric string to a number.
@core.to-string(value)	Render a scalar as text.
@core.to-boolean(value)	Convert true, false, or their string forms to a boolean.

Calls are qualified:

@core.length(input.names)
@core.join(input.names, ',')

Go libraries can also export functions. Call them with the import alias:

net.cidr-host(input.cidr, 10)

Function calls run inline during expression evaluation. They do not create state nodes.