ruby-instructions.txt

INTEGER
+ - add together
next - give the next number
even? - is the number even?
odd? - is the number odd?
round - rounds up or down to nearest integer 
to_s - converts to a string
abs - absolute value
zero? - is it 0?
ceil - rounds up to the nearest integer
* - multiply two integers together
puts - displays the integer
> - greater than
< - less than
== - are they equal?
<= - less than OR equal
>= - greater than or equal
!= - not equal



STRING
+ - put the strings together
capitalize - capitalize first letter of string
upcase - make all letters capital
reverse - reverse all of the letter
chop - take off last letter of string
* - if followed by integer, repeat that many times
downcase - make everything lowercase
empty? - is the string empty?
include? - does the string include another string?
next - next letter in sequence
delete - deletes all individual letters in string
length - count the number of letters
puts - displays the string
gets - takes a string from us including the enter key
gets.chomp - takes a string without the enter key



ARRAY
each - go through each element
join(", ") - turn to string w/ comma, return original
reverse - reverse elements, return original
[x] - element at x, return original
uniq - remove duplicates, return original
delete_at(x) - remove element at x, return new array