iamshaunjp#7

mine-practice/app.js

@@ -1,46 +1,6 @@
-//#6 Modules and require
-//for dividing code into logical modules i.e. separate files.
-//our applications can be divided into logical files.
+//#7
+var stuff = require('./stuff');//what is exported is returned and stored in counter variable.
 
-var counter = require('./count');//what is exported is returned and stored in counter variable.
-
-console.log(counter(['shaun','crystal','ryu']));
-//#4
-// var time = 0;
-// var timer = setInterval(function(){
-//     time += 2;
-//     console.log(time + ' seconds have passed');
-//     if (time > 5){
-//         clearInterval(timer);
-//     }
-// },2000);
-
-
-// console.log(__dirname);
-// console.log(__filename);
-
-
-//#5 Function Expressions
-function callFunction(fun){
-    fun();
-}
-//normal function statement
-
-function sayHi(){
-    console.log('Hi');
-}
-
-sayHi();
-
-//function expression is assigning a variable to an anonymous function
-
-var sayBye = function(){
-    console.log('bye');
-
-};
-
-sayBye();
-
-callFunction(sayBye);
-
-callFunction(sayHi);
+console.log(stuff.counter(['shaun','crystal','ryu']));
+console.log(stuff.adder(4,5));
+console.log(stuff.adder(stuff.pi,5));

mine-practice/stuff.js

@@ -0,0 +1,34 @@
+var counter = function(arr){
+    return 'There are ' + arr.length + ' elements in this array';
+};
+var adder = function(a,b){
+    return `The sum of the 2 numbers is ${a+b}`;
+};
+
+var pi = 3.142;
+// //need to explicitly say what part of this module we want available outside this module
+// //module.exports is an empty object, which we can use dot notation to add properties to it
+
+module.exports.counter = counter;
+module.exports.adder = adder;
+module.exports.pi = pi;
+
+// console.log(counter(['shaun','crystal','ryu']));
+
+//ANOTHER WAY IS TO ASSIGN THE VALUES/FUNCTIONS TO MODULE.EXPORTS.PROPERTIES
+
+// module.exports.counter = function(arr){
+//     return 'There are ' + arr.length + ' elements in this array';
+// };
+// module.exports.adder = function(a,b){
+//     return `The sum of the 2 numbers is ${a+b}`;
+// };
+
+// module.exports.pi = 3.142;
+
+//A THIRD APPROACH IS TO ASSIGN MODULE.EXPORTS TO A JAVASCRIPT OBJECT
+// module.exports = {
+//     counter: counter,
+//     adder: adder,
+//     pi: pi
+};