David Kimura
PRO
said about 3 years ago
on
Gem in a Box
:
☒ It's just a preference when creating an array or hash. In this particular case there wouldn't be any benefit over
However, in many other situations doing a [].tap or {}.tap is pretty handy in conditionally adding items. For example,
array = []
array << { username: 'username', password: 'password' }However, in many other situations doing a [].tap or {}.tap is pretty handy in conditionally adding items. For example,
User.new(user_params)
def user_params
allowed_params = [].tap do |array|
array << :first_name
array << :last_name
array << :admin if current_user.admin?
end
params.require(:user).permit(allowed_params)
end