I have this piece of code (taken from this question): var walk = function(dir, done) { var results = ; fs.readdir(dir, function(err, list) { if (err) return done(err); var...
I notice that a pre-increment/decrement operator can be applied on a variable (like ++count). It compiles, but it does not actually change the value of the variable! What is...
Consider this code: “int s = 20; int t = s++ + –s;”. What are the values of s and t?