method
thread_variable?
thread_variable?(key)
public
Returns true if the given string (or symbol) exists as a thread-local variable.
me = Thread.current me.thread_variable_set(:oliver, "a") me.thread_variable?(:oliver) # => true me.thread_variable?(:stanley) # => false
Note that these are not fiber local variables. Please see Thread#thread_variable_get for more details.