[Defibrillators task] Fix type error - defibrillator instead of defibrilator #1
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Training/Easy/defibrillators.rb
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| def init_defibrilators(defibrilator) | ||
| d_long = parse(defibrilator[4]) | ||
| d_lat = parse(defibrilator[5]) | ||
| def init_defibrillators(defibrillator) |
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If the function is called init_defibrillators, it should take all the objects at once. If you're initializing one, it's better to make the method singular.
Also, add_defibrillator might be a better name, because you're adding it to the existing defibrillators hash
Training/Easy/defibrillators.rb
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| d_long = parse(defibrilator[4]) | ||
| d_lat = parse(defibrilator[5]) | ||
| def init_defibrillators(defibrillator) | ||
| d_long = parse(defibrillator[4]) |
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parse is too generic of a name.
Training/Easy/defibrillators.rb
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| end | ||
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| def start | ||
| n.times do |
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Here you have the option of either adding inputs one by one, or getting the whole input and parsing it in one go. The latter might be a better option
Training/Easy/defibrillators.rb
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| init_defibrilators(defib.split(';')) | ||
| init_defibrillators(defib.split(';')) | ||
| end | ||
| puts find_closest(defibrillators) |
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The Ruby object itself should only return the answer. Printing should happen after the fact.
So instead of:
Object.start
You can do
answer = object.start
puts answer
Training/Easy/defibrillators.rb
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| def find_closest(defibrilators_hash) | ||
| min = defibrilators_hash.values.first | ||
| closest_name = defibrilators_hash.keys.first | ||
| def find_closest(defibrillators_hash) |
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Instead of writing a method yourself, you can use Enumerable#min_by:
closest_name, closest_value = defibrillators_hash.min_by { |pair| pair.last }Also, if you're not going to use the second value, you can write it like this:
closest_name, _ = defibrillators_hash.min_by { |pair| pair.last }| x = calculate_x(d_long, d_lat) | ||
| y = calculate_y(d_lat) | ||
| defibrilators[defibrilator[1]] = distance(x, y) | ||
| defibrillators[defibrillator[1]] = distance(x, y) |
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Inside the distance function, you can use Ruby's "power" operator - so instead of
x * x
you can do
x ** 2
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| def start | ||
| n.times do | ||
| Array.new(defibrilators_count) do |
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@evgenispasov-which special for you
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