REBOL 3 Docs Guide Concepts Functions Datatypes Errors
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REBOL 3 Functions: action?

action?  value

Returns TRUE if it is this type.

Arguments:

value [any-type!]

See also:

function?   op?   native?   any-function?   type?  

Description

Actions are special functions that operate with datatypes. See action! for more.

print action? :add
true
print action? :append
true
print action? :+
false
print action? "add"
false


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