Coerce to number

Question

I have often seen the trick

after = +after;

to coerce the variable after to a number. Reading through the Node.JS source I fou

Answer 1

After a quick google to make sure my suspicions were true, I came to this conclusion. Using the + operator to convert to a number is faster, because no mathematical operations occur after type-casting, whereas using the *= approach means that after after is converted, it will be multiplied by 1.