require 'pry'
# enumarables in hashes
books = [
{
title: 'Intro to Ruby Programming: Begginers Guide Series',
price: 25.9,
author: 'John Telder',
publisher: 'comedy.com',
rating: 3.5,
description: 'Great intro to ruby for new programmers'
},
{
title: 'The Ruby Programming Langauage',
price: 13.99,
author: 'Yukihiro Matsumoto',
publisher: "O'rilley",
rating: 4,
description: 'A thorough look into the fundamentals of Ruby programming'
},
{
title: 'The Ruby Programming Language',
price: 24.11,
author: 'David Flanagan',
publisher: 'Kindle',
rating: 4.5,
description: 'Everything You Need to Know'
},
{
title: 'Beginning Ruby 3: From Beginner to Pro ',
price: 23.99,
author: 'Carleton DiLeo and Peter Cooper',
publisher: 'APRESS',
rating: 4.0,
description: 'A good series from beginner to pro'
},
{
title: 'Polished Ruby Programming',
price: 51.99,
author: 'Jeremy Evans',
publisher: 'Kindle',
rating: 4.5,
description: 'Build better software with more intuitive, maintainable, scalable, and high performance ruby code'
},
{
title: 'The Well-Grounded Rubyist',
price: 49.99,
author: 'David A. Black and Joseph Leo 111',
publisher: 'eTextbook',
rating: 4.0,
description: 'Great intro to ruby concepts'
},
{
title: 'Practical Object-oriented Design',
price: 44.99,
author: 'Sandi Metz',
publisher: 'Kindle',
rating: 5.0,
description: 'An Agile Premier Using Ruby'
}
]
def print_books
books.each { |b| puts b }
puts b
end
titles = books.collect {|b| b[:title]}
cheaper = books.select { |b| b[:price] > 28 }
author = books.find { |b| b[:author] == 'Yukihiro Matsumoto'}
total = books.sum { |b| b[:price] }
best_book = books.max { |b| b[:rating] }
binding.pry
React
Typescript
Django
Laravel
Facebook
Microsoft
Google
Alibaba
D3
Tencent