function loveIs() { function isLove(date) { if (date.isInfinite) { return true } return isLove(date + 1) } const today = 0 if(isLove(today)) { console.log('I love you') return } } loveIs() // A never return recursion // Stack overflow in some language // App crash on some platform // Hardware damage on old devices 這才叫代碼寫詩 This