20180904
\n20180907 countdown, countSheep, Guessing Game
\n// countdown\n\n// Iterative way\nfunction countdown(n) {\n for (var i = n; i > 0; i--) {\n console.log(i)\n }\n console.log('Done!')\n}\n\n// Recursive\nfunction countdown(n) {\n if (n < 0) {\n // base case\n console.log('Done!')\n } else {\n console.log(n)\n countdown(n - 1)\n }\n}\n\ncountdown(10)// countSheep\nfunction countSheep(number) {\n if (number === 0) {\n console.log('Zzzzzz')\n } else {\n console.log('Another sheep jumps over the fence.')\n // Define the variable newNumber as\n // 1 less than the input variable number\n var newNumber = number - 1\n\n //Recursively call the function\n //with newNumber as the parameter\n return countSheep(newNumber)\n }\n}\n\ncountSheep(2)// Guessing game\n// Guessing game example with recursive when the number of times to repeat function is not specified\n\nfunction guessNumber(number) {\n // Prompt the user for a number\n var guess = prompt('Guess a number between 1 and 100')\n\n // Convert their guess to a number using Number\n guess = Number(guess)\n\n // Define base case\n if (guess === number) {\n return console.log('You got it! The number was ' + number)\n }\n // Define recursive case with a function call\n guessNumber(number)\n}\n\n// Call the function guessNumber() with an integer for an argument\nguessNumber(2)