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-rw-r--r--ruby.html.markdown32
1 files changed, 32 insertions, 0 deletions
diff --git a/ruby.html.markdown b/ruby.html.markdown
index a4c74a4f..962853a2 100644
--- a/ruby.html.markdown
+++ b/ruby.html.markdown
@@ -8,6 +8,8 @@ contributors:
- ["Tristan Hume", "http://thume.ca/"]
- ["Nick LaMuro", "https://github.com/NickLaMuro"]
- ["Marcos Brizeno", "http://www.about.me/marcosbrizeno"]
+ - ["Ariel Krakowski", "http://www.learneroo.com"]
+
---
```ruby
@@ -33,6 +35,7 @@ You shouldn't either
8 - 1 #=> 7
10 * 2 #=> 20
35 / 5 #=> 7
+2 ** 5 #=> 32
# Arithmetic is just syntactic sugar
# for calling a method on an object
@@ -79,6 +82,10 @@ placeholder = "use string interpolation"
"I can #{placeholder} when using double quoted strings"
#=> "I can use string interpolation when using double quoted strings"
+# Combine strings, but not with numbers
+"hello " + "world" #=> "hello world"
+"hello " + 3 #=> TypeError: can't convert Fixnum into String
+"hello " + 3.to_s #=> "hello 3"
# print to the output
puts "I'm printing!"
@@ -247,6 +254,22 @@ else
puts "Alternative grading system, eh?"
end
+#=> "Better luck next time"
+
+# cases can also use ranges
+grade = 82
+case grade
+ when 90..100
+ puts "Hooray!"
+ when 80...90
+ puts "OK job"
+ else
+ puts "You failed!"
+end
+
+#=> "OK job"
+
+
# Functions
def double(x)
@@ -474,3 +497,12 @@ Something.qux # => NoMethodError: undefined method `qux'
Something.new.bar # => NoMethodError: undefined method `bar'
Something.new.qux # => 'qux'
```
+
+## Additional resources
+
+- [Learn Ruby by Example with Challenges](http://www.learneroo.com/modules/61/nodes/338) - A variant of this reference with in-browser challenges.
+- [Official Documentation](http://www.ruby-doc.org/core-2.1.1/)
+- [Ruby from other languages](https://www.ruby-lang.org/en/documentation/ruby-from-other-languages/)
+- [Programming Ruby](http://www.amazon.com/Programming-Ruby-1-9-2-0-Programmers/dp/1937785491/) - An older [free addition](http://ruby-doc.com/docs/ProgrammingRuby/) is available online.
+
+