resolved tasks - objects

01/app.js

@@ -0,0 +1,8 @@
+const user = {
+    firstName: 'Janusz',
+    lastName: 'Kowalski',
+    sex: 'male',
+    age: 48,
+}
+
+console.log(user.firstName, user.lastName, user.sex, user.age);

02/app.js

@@ -8,4 +8,10 @@ const calendarJS = {
     'ES7': '2016-06',
     'ES8': '2017-06',
     'ES9': '2018-06',
-}
+}
+
+for (const date in calendarJS){
+    console.log(
+    calendarJS[date] === null ? `${date} nie zostało wydane` : `${date} wydano  w roku ${calendarJS[date]}`
+    );
+}

03/app.js

@@ -43,10 +43,38 @@ books.getAuthor = function(isbn) {
 
 books.getTitle = function(isbn, lang) {
 
+    const title = this[isbn].title;
+
+    if (!title) {
+        return null;
+    }
+
+
+    if (lang === 'en') {
+        return title.en;
+    } else {
+        return title.pl;
+    }
+
 }
 
 books.getTranslator = function(isbn, lang) {
 
+    const translator = this[isbn].translator;
+
+    if (!translator) {
+        return null;
+    }
+
+    if (translator[lang] === null) {
+        return false;
+    }
+
+    if (lang === 'en') {
+        return translator.en;
+    } else {
+        return translator.pl;
+    }
 }
 
 

04/app.js

@@ -6,4 +6,26 @@ const user = {
         month: '04',
         year: '1985'
     }
-}
+}
+
+const currentDate = new Date();
+const currentDay = currentDate.getDate();
+const currentMonth = currentDate.getMonth() + 1;
+
+
+function checkBirthday(user){
+
+    const userBirthday = user.born;
+    const birthdayDay = parseInt(userBirthday.day);
+    const birthdayMonth = parseInt(userBirthday.month);
+
+    if (birthdayDay == currentDay && birthdayMonth == currentMonth) {
+        return 'Wszystkiego najlepszego z okazji dzisiejszych urodzin!';
+    }
+    else {
+        return 'Dzis nie masz urodzin'
+    }
+
+}
+
+console.log(checkBirthday(user));