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

hash.to_a

A file named 'test' is located at the location '/var/www/ruby/' 1. aFile = File.new('/var/www/ruby/test', 'r') 2. if aFile 3. aFile.syswrite('RUBY Testing') 4. print

Ruby code, a = hello world puts a.scan(/(..)(..)/)

Environment variables in Ruby: Statement 1: Environment variable RUBYLIB defines the search path for libraries. Statement 2: Environment variable RUBYLIB_PREFIX modifies the RUBYLIB search path by replacing the prefix of a particular library.

Which of the following statements regarding Ruby variables is incorrect?

DBD::Mysql implements some driver-specific functions to be used In Ruby. Given below is one such function: dbh.func(:insert_id) => Fixnum What is the purpose of this function?

colors= ['Red', 'Blue', 'Yellow', 'Green', 'Violet', 'Black'] Which of the given options will print the following output? Red Blue Yellow Green Violet Black

Command 1: $ ruby -c Command 2: $ ruby -C dir Which of the following statements regarding these two commands are correct?

Assuming that f is an instance of the File class:

Which of the following is used to cancel the method definition?

Statement X: Method names should begin with an uppercase letter. Statement Y: Methods should be defined before calling them, otherwise Ruby will raise an exception for undefined method invoking.