Starting Ruby On Rails - Basics
From Logic Wiki
To learn the methods of an object put .methods at the end of it
1.methods
1.methods.sort
Methods can take arguments
2.between?(1,3)
Array
words = ["foo", "bar", "baz"] words[1]
Building strings
a = 1
b = 4
puts "The number #{a} is less than #{b}"
It is conventional in Ruby to have '?' at the end of the method if that method returns only boolean values.
"I can't work with any other language but Ruby".end_with?("Ruby")
To replace first instance :
"I should look into your problem when I get time".sub('I','We')
To Replace all :
"I should look into your problem when I get time".gsub('I','We')
Regular Expressions or RegExs are a concise and flexible means for "matching" particular characters, words, or patterns of characters. In Ruby you specify a RegEx by putting it between a pair of forward slashes (/). Now let's look at an example that replaces all the vowels with the number 1:
'RubyMonk'.gsub(/[aeiou]/,'1')
