title_body: What is a café allongé, and how is it pronounced?
upvoted_answer: Café allongé is the French for Italian cafe lungo, or in English, long espresso.
  
  There may be previous related answers on this:
  
  
  I run my espresso machine until my whole cup is full. What&#39;s my coffee called?
  What are the standard espresso parameters (dose, mass/volume, time, etc.)?
  And, of course a wiki page.
  
  
  I don't know how to write in the pronounciation alphabet, but it is pronounced something similar to "a-lawn-jee".
  
  Normally, it is prepared in a bit longer time than normal espresso. So, the second explanation given in the book is the standard way.
  
  The first one is more sophisticated and uncommon with many side flavors in it. People who are into coffee mostly prefer pure coffee. However, as the author likes it that way, probably he uses such a metaphor in his book.
  
  (As computer scientists know, JavaScript is dynamically typed which may cause many undesirable side effects according to the type theory. I assume, the second recipe is more suitable to be used as a metaphor for a programming language that has type system. Haskell maybe?)