What is the purpose of the following array method in Ruby?

array.rassoc(key)

A thread shares all global. instance, and local variables that are in existence at the time the thread starts.

Assuming that d is an instance of Dir class:

Which of the following operators indicate continuation of a statement In Ruby?

range operators in Ruby: Statement X: The two.dot form. '..’. range operator creates a range from start point to end point inclusive. Statement Y: The three-dot form. '...', range operator creates a range from start point to end point exclusive.

Statement 1: A thread shares all global, instance, and local variables that are in existence at the time the thread starts. Statement 2: Ruby threads are totally out-of-process, and are implemented outside the Ruby interpreter.

In the Ruby programming language, 'true' is a type of :

Statement 1: When a Ruby program terminates, all running threads are killed, regardless of their states. Statement 2: You can wait for a particular thread to finish by calling that thread's Thread#wait method.

What is the output of the following code in Ruby? puts 'hello world'.sub(/[aeiou]/, '*')

Consider the following Interactive Ruby Shell console quotes. In one of the quotes, => is not the real irb result. Which of the following is that quote?