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Initial commit #107

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4d368e6
Initial commit
Jul 2, 2018
8b8ca99
Finished get letter grade
Jul 2, 2018
74af948
Finished The shortest string
Jul 2, 2018
247ab03
Updated and refactored based on comments. Much cleaner.
Jul 2, 2018
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30 changes: 20 additions & 10 deletions letsdrill.rb
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Original file line number Diff line number Diff line change
@@ -1,24 +1,34 @@
def get_letter_grade(integer)

#Put your code here!

letter_grade = ""
if integer >= 90
letter_grade = "A"
elsif integer >= 80
letter_grade = "B"
elsif integer >= 70
letter_grade = "C"
elsif integer >= 60
letter_grade = "D"
else
letter_grade = "F"
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The whole if/elsif/else structure evaluates to the value of whichever branch it takes. So, you could move the local variable assignment out of each condition like so:

letter_grade = if integer >= 90
                 "A"
               elsif ...

end
return letter_grade
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The return keyword is optional in ruby, and the standard is to omit it. If you did that here, can you see how you could also get rid of the letter_grade variable?

end

def shortest_string(array)
return the_shortest_string = array.min_by{|a| a.size}
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Similar comments to the above apply here to. But nice use of min_by!


#Put your code here!

end



### Don't touch anything below this line ###

p "Fetch Letter Grade: You should have 2 trues"
p get_letter_grade(89) == "B"
p get_letter_grade(73) == "C"
p get_letter_grade(89) == "B"
p get_letter_grade(73) == "C"
p
p "Shortest String: You should have 3 trues"
p shortest_string(["touch","this", "car"]) == "car"
p shortest_string([]) == nil
p shortest_string(["can", "a", "solve", "Find", "solution"]) == "a"
p shortest_string([]) == nil
p shortest_string(["can", "a", "solve", "Find", "solution"]) == "a"