A sentence saying why the square returned null, or null if it didn't.
pearsonSquare returns null for two different reasons and a caller
showing the result needs to say which. The sentence lives here so every
caller explains the same refusal the same way.
It says "lots" and not "beers" because this function doesn't know what the
two numbers are. A caller that knows what they are can name them alongside
this sentence.
A sentence saying why the square returned
null, ornullif it didn't.pearsonSquare returns
nullfor two different reasons and a caller showing the result needs to say which. The sentence lives here so every caller explains the same refusal the same way.It says "lots" and not "beers" because this function doesn't know what the two numbers are. A caller that knows what they are can name them alongside this sentence.