REBOL 3 Functions: any-block?

any-block? value

Return TRUE if value is any type of block.

Arguments:

value [any-type!]

Description

Returns true only if the value is a block! (any kind of block) and false for all other values.

print any-block? [1 2]
true

print any-block? first [(1 2) 3]
true

print any-block? 'a/b/c
true

print any-block? 12
false

To learn what datatypes are blocks:

print any-block!
block! paren! path! set-path! get-path! lit-path!