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Ruby Ruby Basics (Retired) Ruby Strings What are Strings?

3 Answers

Tobias Helmrich
Tobias Helmrich
31,602 Points

Hey there Yi,

#{} is used to interpolate a variable inside of a string in Ruby which means that you can use a variable inside of a string. To interpolate a variable inside of a string you have to write the variable name inside of the curly braces.

This would be an example:

name = "Yi"
puts "Hello, #{name}"

This would have the output "Hello, Yi".

I hope that helps, if not or if you have further questions feel free to ask! :)

jason chan
jason chan
31,009 Points

it's just another way to call a variable when printing.

Pretend variables are like batteries and then you want to use those batteries later in a sentence. In this case print as Tobias says.

rowend rowend
rowend rowend
2,926 Points

That is the way ruby evaluates expressions, convert them to string and place them into string. What I mean with expressions are not only variables, you can do math and other stuff.


name = 'rowend'
puts "my name is #{name} and my lucky number is #{12 + 9} and this is another string #{'my string'}"