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Pr-2 #2

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9 changes: 9 additions & 0 deletions function.rb
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Original file line number Diff line number Diff line change
@@ -0,0 +1,9 @@

def function(n)
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method should have a more descriptive name

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Could we rename this function? Maybe we could name it factorial?

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Should we use more descriptive names for "function" and "n" here?

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Change function to a name that tells what method does.

if n == 0
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Function has no name

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I agree this function needs to have a name, just as a reminder functions have:

  • name > the function name.
  • param > the name of an argument to be passed to the function. Maximum number of arguments varies in different
    engines.
  • statements> the statements which comprise the body of the function

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This function is pretty short. Have you considered using a ternary?

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Suggested change
if n == 0
n == 0 ? 1 : n * function(n-1)

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Do we want to change this to a ternary?

1
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We will likely want a return statement here.

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@cyndilopez cyndilopez Aug 15, 2019 •
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assign to variable

else
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should specify if you are returning 1 or what is happening with 1

n * function(n-1)
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assign to variable

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Suggested change
n * function(n-1)
return n * function(n-1)

end
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Does the new value of n need to be available outside of the function? It should be saved in a variable and returned.

end
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What is being returned?

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Just to add , by default, functions return undefined. To return any other value, the function must have a return statement that specifies the value to return.