Difference between the access modes of the `File` object (ie. w+, r+)

Question

When using files in Ruby, what is the difference between the r+ and w+ modes? What about the a+ mode?

Answer 1

Answer: Both r+ and w+ we can read ,write on file but r+ does not truncate (delete) the content of file as well it doesn’t create a new file if such file doesn’t exits while in w+ truncate the content of file as well as create a new file if such file doesn’t exists.