@@ -0,0 +1,3 @@
+node_modules
+*.log
+.DS_Store

@@ -0,0 +1,18 @@
+'use strict';
+
+let obj1 = {};
+obj1.name = 'Marcus';
+obj1.city = 'Roma';
+obj1.born = 121;
+
+let obj2 = new Object();
+obj2.name = 'Marcus';
+obj2.city = 'Roma';
+obj2.born = 121;
+
+let obj3 = {
+name: 'Marcus',
+city: 'Roma',
+born: 121
+};
+

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+'use strict';
+
+let person = {
+name: 'Marcus',
+city: 'Roma',
+born: 121
+};
+
+console.log('Person name is: ' + person.name);
+console.log('Person name is: ' + person['name']);
+
+delete person.name;
+console.dir({ person });
+
+delete person['city'];
+console.dir({ person });

@@ -0,0 +1,16 @@
+'use strict';
+
+let person = {
+name: 'Marcus',
+city: 'Roma',
+born: 121
+};
+
+if ('name' in person) {
+console.log('Person name is: ' + person.name);
+}
+
+for (let key in person) {
+let value = person[key];
+console.dir({ key, value });
+}

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+'use strict';
+
+let letters = [];
+letters.push('B');
+console.dir({ letters });
+letters.unshift('A');
+console.dir({ letters });
+letters.push('C');
+console.dir({ letters });
+
+let numbers = [];
+
+let languages = ['C++', 'JavaScript', 'Python', 'Haskell', 'Swift'];
+console.dir({
+length: languages.length,
+'languages[0]': languages[0],
+'languages[languages.length-1]': languages[languages.length-1]
+});

@@ -0,0 +1,17 @@
+'use strict';
+
+let person = {
+name: 'Marcus',
+city: 'Roma',
+born: 121
+};
+
+let s = JSON.stringify(person);
+console.log(s);
+
+let obj = JSON.parse(s);
+console.dir(obj);
+
+let letters = ['A', 'B', 'C', 'D'];
+console.log(letters + '');
+console.log(JSON.stringify(letters));