declare

defs the supplied var names with no bindings, useful for making forward declarations.

def

Creates and interns a global var with the name of symbol in the current namespace (*ns*) or locates such a var if it alr...

defonce

defs name to have the root value of init iff the named var has no root value, else init is unevaluated

get-validator

Gets the validator-fn for a var/ref/agent/atom.

set-validator!

Sets the validator-fn for an atom. validator-fn must be nil or a side-effect-free fn of one argument, which will be pass...