Complete all tasks

01/app.js

@@ -0,0 +1,8 @@
+const user = {
+    firstName: 'Sandra',
+    lastName: 'Mstowska',
+    sex: 'woman',
+    age: 26,
+}
+
+console.log(user.firstName, user.lastName, user.sex, user.age);

02/app.js

@@ -8,4 +8,13 @@ const calendarJS = {
     'ES7': '2016-06',
     'ES8': '2017-06',
     'ES9': '2018-06',
+}
+
+
+for(const key in calendarJS) {
+    if((calendarJS[key]) === null) {
+        console.log(key, "nie zostało wydane");
+    } else {
+    console.log(key, "wydano w terminie", (calendarJS[key]));
+    }
 }

03/app.js

@@ -42,14 +42,26 @@ books.getAuthor = function(isbn) {
 }
 
 books.getTitle = function(isbn, lang) {
+    if(typeof this[isbn] === 'undefined') {
+        return null;
+    }
 
+    const title =this[isbn].title;
+    return lang === 'en' ? title.en : title.pl;
 }
 
 books.getTranslator = function(isbn, lang) {
+    if(typeof this[isbn] === 'undefined') {
+        return null;
+    }
 
+    const translator = this[isbn].translator;
+    const result = translator[lang];
+    return result === null ? false : result;
 }
 
 
+
 console.log( books.getAuthor('978-83-7278-000-3') ); // J.K. Rowling
 console.log( books.getAuthor('000-00-0000-000-0') ); // null
 console.log( books.getTitle('978-83-7278-000-3', 'pl') ); // Harry Potter i Kamień Filozoficzny

04/app.js

@@ -2,8 +2,22 @@ const user = {
     firstName: 'Adam',
     lastName: 'Nowak',
     born: {
-        day: '14',
-        month: '04',
+        day: '18',
+        month: '08',
         year: '1985'
     }
-}
+}
+
+function happyBday(user) {
+    const today = new Date();
+    const day = today.getDate();
+    const month = today.getMonth() + 1;
+
+    if (day == user.born.day && month == user.born.month) {
+        return "Today is your birthday!";
+    } else {
+    return "Today is not your birthday :c";
+    }
+}
+
+console.log(happyBday(user));