I'm quite confused here

Question

What is the difference between a double quote string and single quote string.? Please help.

Answer 1

If you have a single quote string than you can't put inside special symbols and values of variables for execution. For example:

a=5
puts "First string\nSecond string#{a}"
#outputs:
First string
Second string5

a=5
puts 'First string\nSecond string#{a}'
#outputs:
First string\nSecond string#{a}

Answer 2

Anything within single quotes is interpreted literally.
Eg. \n will remains as \n

Single quotes does not support string interpolation #{} and escape sequences \n.

Answer 3

Gracias!! Thanks!