Using strings in Ruby
A string is a data type in Ruby and contains a set of characters, typically normal English text (or whatever natural language you're building your program for), that you would write. A key point for the syntax of strings is that they have to be enclosed in single or double quotes if you want to use them in a program. The program will throw an error if they are not wrapped inside quotation marks.
Let's walk through three scenarios.
Missing quotation marks
In the preceding code, I tried to simply declare a string without wrapping it in quotation marks. As you can see, this results in an error. This error is because Ruby thinks that the values are classes and methods.
Printing strings
In the preceding code snippet, we're printing out a string that we have properly wrapped in quotation marks. Note that both single and double quotation marks work properly.
It's also important that you do not mix the quotation mark types. For example, run the following code:
puts "Name an animal...
