Homework: Array Play
[1] pry(main)> our_class=["Ben","Anna","Shirley","Lauren","Ben","Michelle","Angie","Matt"] | |
=> ["Ben", "Anna", "Shirley", "Lauren", "Ben", "Michelle", "Angie", "Matt"] | |
[6] pry(main)> our_class.each do |name| | |
[6] pry(main)* if name.length<5 | |
[6] pry(main)* less_than5 << name | |
[6] pry(main)* end | |
[6] pry(main)* end | |
=> ["Ben", "Anna", "Shirley", "Lauren", "Ben", "Michelle", "Angie", "Matt"] | |
[7] pry(main)> less_than5 | |
=> ["Ben", "Anna", "Ben", "Matt"] | |
[39] pry(main)> sentence = "Ruby is actually kind of fun once you get used to it." | |
=> "Ruby is actually kind of fun once you get used to it." | |
[40] pry(main)> sentence_array = sentence.split(" ") | |
=> ["Ruby", | |
"is", | |
"actually", | |
"kind", | |
"of", | |
"fun", | |
"once", | |
"you", | |
"get", | |
"used", | |
"to", | |
"it."] | |
[42] pry(main)> words4long = [] | |
=> [] | |
[43] pry(main)> sentence_array.each do |words| | |
[43] pry(main)* if words.length == 4 | |
[43] pry(main)* words4long << words | |
[43] pry(main)* end | |
[43] pry(main)* end | |
=> ["Ruby", | |
"is", | |
"actually", | |
"kind", | |
"of", | |
"fun", | |
"once", | |
"you", | |
"get", | |
"used", | |
"to", | |
"it."] | |
[44] pry(main)> words4long | |
=> ["Ruby", "kind", "once", "used"] | |
[45] pry(main)> | |
[8] pry(main)> movies | |
=> [{:title=>"Forest Gump", :budget=>55, :stars=>["Tom Hanks"]}, | |
{:title=>"Star Wars", :budget=>11, :stars=>["Mark Hamill", "Harrison Ford"]}, | |
{:title=>"Batman Begins", | |
:budget=>150, | |
:stars=>["Christian Bale", "Liam Neeson", "Michael Caine"]}, | |
{:title=>"Titanic", | |
:budget=>200, | |
:stars=>["Kate Winslet", "Leonardo DiCaprio"]}, | |
{:title=>"Inception", :budget=>160, :stars=>["Leonardo DiCaprio", "JGL"]}] | |
[15] pry(main)> less100 =[] | |
=> [] | |
[16] pry(main)> movies.each do |hash| | |
[16] pry(main)* if hash[:budget] <100 | |
[16] pry(main)* less100 << hash[:title] | |
[16] pry(main)* end | |
[16] pry(main)* end | |
=> [{:title=>"Forest Gump", :budget=>55, :stars=>["Tom Hanks"]}, | |
{:title=>"Star Wars", :budget=>11, :stars=>["Mark Hamill", "Harrison Ford"]}, | |
{:title=>"Batman Begins", | |
:budget=>150, | |
:stars=>["Christian Bale", "Liam Neeson", "Michael Caine"]}, | |
{:title=>"Titanic", | |
:budget=>200, | |
:stars=>["Kate Winslet", "Leonardo DiCaprio"]}, | |
{:title=>"Inception", :budget=>160, :stars=>["Leonardo DiCaprio", "JGL"]}] | |
[17] pry(main)> less100 | |
=> ["Forest Gump", "Star Wars"] | |
[18] pry(main)> | |
[20] pry(main)> star_leo =[] | |
=> [] | |
[21] pry(main)> movies.each do |role| | |
[21] pry(main)* if role[:stars].include?("Leonardo DiCaprio") | |
[21] pry(main)* star_leo << role[:title] | |
[21] pry(main)* end | |
[21] pry(main)* end | |
=> [{:title=>"Forest Gump", :budget=>55, :stars=>["Tom Hanks"]}, | |
{:title=>"Star Wars", :budget=>11, :stars=>["Mark Hamill", "Harrison Ford"]}, | |
{:title=>"Batman Begins", | |
:budget=>150, | |
:stars=>["Christian Bale", "Liam Neeson", "Michael Caine"]}, | |
{:title=>"Titanic", | |
:budget=>200, | |
:stars=>["Kate Winslet", "Leonardo DiCaprio"]}, | |
{:title=>"Inception", :budget=>160, :stars=>["Leonardo DiCaprio", "JGL"]}] | |
[22] pry(main)> star_leo | |
=> ["Titanic", "Inception"] | |
[23] pry(main)> | |
[49] pry(main)> def four_words(text) | |
[49] pry(main)* new_array=[] | |
[49] pry(main)* text.split(" ").each do |word| | |
[49] pry(main)* if word.length ==4 | |
[49] pry(main)* new_array << word | |
[49] pry(main)* end | |
[49] pry(main)* end | |
[49] pry(main)* new_array | |
[49] pry(main)* end | |
=> :four_words | |
[50] pry(main)> four_words("This had better work") | |
=> ["This", "work"] |
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