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Awgiedawgie 2022-03-27 13:25:03
ruby assign value to hash
my_hash = Hash.new #=> { } # OR my_hash = {} Add solution
Awgiedawgie 2022-03-25 04:05:10
test if array empty ruby
irb(main):001:0> [].length => 0 irb(main):002:0> [1].length => 1 irb(main):003:0> [1, 'foo'].length => 2 Add solution
Awgiedawgie 2022-03-24 19:45:17
rails update without validation
# no validations user.update_attribute(:last_request_at, Time.current) # no validations AND callback user.update_columns(last_request_at: Time.current) Add solution
Krish 2022-03-23 05:15:08
ruby hello world
# Hello World Program in Ruby! puts "Hello, World!" Add solution
Awgiedawgie 2022-03-23 02:40:01
rails keep all params except for some
params.require(:shoes).except!(:shoes_id).permit! Add solution
Awgiedawgie 2022-03-20 06:15:08
rails hidden field default value
hidden_field(:object, :field, :value => params[:requestval]) Add solution
A-312 2022-03-19 19:55:31
print things ruby
puts "Hello World!" Add solution
Awgiedawgie 2022-03-18 22:15:07
rails command line
rails new app_name #creates a new rails application rails server or rails s #runs the rails server rails generate or rails g #gives a list of available generators rails console or rails c #opens up the rails console that allows you # to interact ... Add solution
Phoenix Logan 2022-03-18 08:10:03
ruby get the number of same element in array
names = ["Jason", "Jason", "Teresa", "Judah", "Michelle", "Judah", "Judah", "Allison"] counts = Hash.new(0) names.each { |name| counts[name] += 1 } # => {"Jason" ... Add solution
Phoenix Logan 2022-03-17 02:40:17
drop rails all db
rake db:drop:all rails db:drop:all Add solution

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