thr.keys â array
Instance Public methods
Returns an an array of the names of the fiber-local variables (as Symbols).
thr = Thread.new do
Thread.current[:cat] = 'meow'
Thread.current["dog"] = 'woof'
end
thr.join #=> #<Thread:0x401b3f10 dead>
thr.keys #=> [:dog, :cat]