continuation.js/sample/mutual.js

A module for tail call optimization by Continuation Passing Style (CPS) transformation with trampoline technique for Node.js

function isEven(x) {
  if (x === 0) {
    return true;
  } else {
    return isOdd(x - 1);
  }
}

function isOdd(x) {
  if (x === 0) {
    return false;
  } else {
    return isEven(x - 1);
  }
}

exports.isEven = isEven;
exports.isOdd = isOdd;