adding .gitignore

src/functions/closure.js

@@ -0,0 +1,26 @@
+var denver = {
+    name: 'Denver',
+    age: 12
+};
+
+var petitPied = {
+    name: 'Petit Pied',
+    age: -65000000
+};
+
+function pure(a, b) {
+    // a.age = 15; NOT PURE
+    return a.age + b.age; //PURE : for some input, will always return a value
+};
+
+console.log('pure :', pure(denver, petitPied));
+
+//care about hard memory use ! (fuite memoire care une fonction peu appelé une fonction qui appelle un objet qui appel une fonction...)
+function unpure() {
+    //console.Log ou screen () : will modify a stream
+    // capture the external petitPied object
+    // depends on external context, and not only params
+    console.log('kick '+petitPied.name);
+};
+unpure();
+

src/functions/es5.js

@@ -0,0 +1,27 @@
+var topics = require('../data').topics;
+console.log('topics', topics);
+var reuslt = topics.filter(function (topic) {
+    ///return true if we keep this topic
+    return (topic.user.name === "Leonard");
+});
+console.log('filter topic', reuslt);
+
+fatReuslt = topics.filter(topic => topic.user.name === 'Leonard');
+console.log('fat filter ',fatReuslt);
+
+var titles = topics.map(function (topic) {
+    return topic.title;
+});
+console.log('titles', titles);
+
+fatTitles = topics.map(topic => topic.title);
+console.log('fatTitles ', fatTitles);
+
+console.log('##################');
+
+var hasViolence = topics.some(function (topic) {
+
+        return topic.tags.includes('violence')
+
+ });
+console.log('violence ?:', hasViolence);

src/functions/foreach.js

@@ -0,0 +1,26 @@
+var users = require('../data').users;
+
+users.forEach(function (user) {
+    console.log('user name :', user.name);
+});
+
+//no result sent by clog()
+users.forEach(user => console.log('user name :', user.name));
+
+users.forEach(user => user.name ? console.log('user name :', user.name) : 'NoName');
+
+
+var admins = [];
+var noAdmins = [];
+//users.forEach(user => user.admin ? admins.push(user) : noAdmins.push(user));
+
+function admin(user) {
+    if (user.admin === true) {
+        admins.push(user.name);
+    } else {
+        noAdmins.push(user.name);
+    }
+};
+users.forEach(admin);
+console.log('admins : ', admins);
+console.log('noAdmins :', noAdmins);

src/functions/formats.js

@@ -0,0 +1,12 @@
+function add(a, b) {
+    return a + b;
+}
+console.log('2+3 :', add(2, 3));
+
+var mult = function (a, b) {
+    return a * b;
+}
+console.log('4*3 :', mult(4, 3));
+
+var divide = (a, b) => a / b;
+console.log('div :', divide(6, 3));

src/functions/multifunction.js

@@ -0,0 +1,44 @@
+var users = require('../data').users;
+var topics = require('../data').topics;
+
+// Topic titles where Sheldon wrote at least one comment
+var getTitle = topics.filter(function (topic) {
+    return topic.comments.some(function (comment) {
+        return comment.user.name === 'Sheldon'
+    })
+}).map(function (topic) {
+    return topic.title;
+});
+console.log('filter topic', getTitle);
+
+var fatGetTitle = topics.filter(topic => topic.comments.some(comment => comment.user.name === 'Sheldon')).map(topic => topic.title);
+console.log('megaFat ', fatGetTitle);
+
+//var titles = getTitle.map(function (topic) {
+//    return topic.title;
+//});
+//console.log('titles topics sheldon', titles);
+
+var getId = [];
+topics.forEach(function (topic) {
+    var group = topic.comments.filter(function (comment) {
+        return comment.user.name === 'Penny'
+    });
+    group.forEach(function (comment) {
+
+        getId.push(comment.id);
+    })
+});
+
+console.log('getId ', getId);
+
+
+var contents = []
+
+topics.forEach(function (topic) {
+   var group = topic.comments.filter(comment => !comment.user.admin && comment.tags && comment.tags.includes('violence'));
+       group.forEach(comment => contents.push(comment.content));
+});
+console.log('contents', contents);
+
+

src/functions/operation.js

@@ -0,0 +1,36 @@
+function add(a, b) {
+    return a + b;
+}
+console.log('2+6 : ', add(56, 59));
+
+function divide(a, b) {
+    return a / b;
+}
+console.log('2/6 : ', divide(56, 59));
+
+function multiply(a, b) {
+    return a * b;
+}
+console.log('2*6 : ', multiply(56, 59));
+
+var minus = function (a, b) {
+    return a - b;
+}
+console.log('2-6 : ', minus(56, 59));
+
+function operation(op, x, y) {
+    return op(x, y);
+}
+console.log('add : ', operation(add, 56, 59));
+
+var ops = [add, divide, minus, multiply];
+var randomElement = ops[Math.floor(Math.random()*ops.length)];
+console.log('random : ', operation(randomElement, 56,59 ));
+
+var data= [3,4];
+data.operation = function (op) {
+    return op (this[0], this[1])
+};
+console.log(data.operation(multiply));
+
+

src/functions/sort.js

@@ -0,0 +1,21 @@
+var x = [0, 3, 5, 6, 10, 12, -12, 45, 34];
+
+var sortFunction = function (a, b) {
+    if (a === b) {
+        return 0;
+    }
+    return a < b ? -1 : 1;
+};
+x.sort(sortFunction)
+console.log('sorted x : ', x);
+
+var users = require('../data').users;
+
+function sortUsers(user1, user2) {
+    if (user1.name === user2.name) {
+        return 0;
+    }
+    return user1.name < user2.name ? -1 : 1;
+};
+users.sort(sortUsers);
+console.log('sortedName : ', users.map(user => user.name));

src/prototype/bind.js

@@ -0,0 +1,29 @@
+function Dinosaurus(name) {
+
+    this.size = 12;
+    this.name = name;
+}
+
+Dinosaurus.prototype.age = -6500000;
+
+const denver = new Dinosaurus('Denver');
+
+function Carnivore() {
+}
+Carnivore.prototype.eat = function (obj) {
+    console.log(this.name + ' eats ' + obj.name);
+};
+
+const tRex = new Carnivore();
+tRex.name = 'T Rex';
+
+//modification :
+const eating = tRex.eat;
+eating(tRex);
+
+boundToDenver = eating.bind(denver);
+eating(tRex);
+console.log('bound eating to denver ');
+boundToDenver(tRex);
+
+eating.bind(denver)(tRex)

src/prototype/priority.js

@@ -0,0 +1,22 @@
+function Dinosaurus(name) {
+
+    this.size = 12;
+    this.name = name;
+}
+
+Dinosaurus.prototype.age = -6500000;
+Dinosaurus.prototype.size = 20;
+
+
+const denver = new Dinosaurus('Denver');
+// new give access to a prototype
+
+const petitPied = new Dinosaurus('Petit Pied');
+console.log('denver size : ', denver.size);
+
+// Denver object is built from prototype
+// But denver has no prototype :(
+// console.log('denver prototype size : ', denver.prototype.size);
+
+denver.size = 150;
+console.log('news denver size : ', denver.size);

src/prototype/prototype.js

@@ -0,0 +1,46 @@
+/**
+ * Note that we have here a Uppercase
+ * It's just a convention
+ *
+ */
+
+function Dinosaurus(name) {
+
+    this.size = 12;
+    this.name = name;
+}
+
+Dinosaurus.prototype.age = -6500000;
+
+const denver = new Dinosaurus('Denver');
+// new give access to a prototype
+
+const petitPied = new Dinosaurus('Petit Pied');
+petitPied.size = 3;
+//console.log('denver name : ', denver.name);
+//console.log('denver size : ', denver.size);
+//console.log('petitPied size : ', petitPied.size);
+//console.log('denver age : ', denver.age);
+//console.log('petitPied age : ', petitPied.age);
+
+function TRex() {
+    this.name = 'Rex';
+
+}
+function Carnivore() {
+}
+Carnivore.prototype.eat = function (obj) {
+    //console.log(this.name + ' eats ' + obj.name);
+};
+
+
+//TRex.prototype = Dinosaurus.prototype;
+//TRex.prototype = Carnivore.prototype;
+
+Object.assign(TRex.prototype, Dinosaurus.prototype);
+Object.assign(TRex.prototype, Carnivore.prototype);
+
+const rex = new TRex();
+console.log('rex age : ', rex.age);
+console.log('rex size : ', rex.size);
+rex.eat(petitPied);

src/prototype/this.js

@@ -0,0 +1,27 @@
+function Dinosaurus(name) {
+
+    this.size = 12;
+    this.name = name;
+}
+
+Dinosaurus.prototype.age = -6500000;
+
+const denver = new Dinosaurus('Denver');
+
+function Carnivore() {
+}
+Carnivore.prototype.eat = function (obj) {
+    console.log(this.name + ' eats ' + obj.name);
+};
+
+const tRex= new Carnivore();
+tRex.eat(denver);
+
+tRex.name= 'T Rex';
+tRex.eat(denver);
+
+denver.eat = tRex.eat;
+denver.eat(tRex);// object this : denver
+
+const eating = tRex.eat;
+eating(denver); // object this . {}

src/start.html

@@ -7,11 +7,10 @@
 
 </head>
 <body>
-
-<h1> Hello Javascript</h1>
-
-<p> You are so nice !</p>
-
+<h1> Hello JavaScript</h1>
+<p>
+    You are so nice !!
+</p>
 </body>
 
 <script type="text/javascript" src="http://underscorejs.org/underscore.js">

src/start.js

@@ -1,2 +1,2 @@
-var x=2+2;
+var x = 2+2;
 console.log(x);