exercises done

Exercises/1-identifiers.js

@@ -0,0 +1,10 @@
+'use strict';
+let name = 'Dima';
+
+const year = 1999;
+
+const welcome = name => console.log(`Welcome, ${name}`);
+
+welcome(name);
+
+welcome(year);

Exercises/2-loop.js

@@ -0,0 +1,14 @@
+'use strict';
+for (let i = 15; i <= 30; i++) {
+    if (i % 2 !== 0)
+        console.log(i);
+}
+
+const range = (start, end) => {
+    for (let i = start; i <= end; i++) {
+        if (i % 2 !== 0)
+            console.log(i);
+    }
+};
+
+range(15, 30);

Exercises/3-function.js

@@ -0,0 +1,17 @@
+'use strict';
+const average = (a, b) => (a + b) / 2;
+
+console.log(average(10, 30));
+
+const square = a => Math.pow(a, 2);
+
+console.log(square(2));
+
+const cube = a => Math.pow(a, 3);
+
+console.log(cube(2));
+
+
+for (let i = 0; i < 3; i++) {
+    console.log(average(square(2), cube(2)));
+}

Exercises/4-object.js

@@ -0,0 +1,30 @@
+'use strict';
+const obj1 = {
+    name: 'obj1Name',
+};
+
+let obj2 = {
+    name: 'obj2Name',
+};
+
+obj1.name = 'vasya';
+obj2.name = 'petya';
+
+// obj1 = {
+//     age: 27,     error
+// };
+
+obj2 = {
+    age: 54,
+};
+
+const createUser = (name, city) => {
+    const user = {
+        name,
+        city,
+    };
+
+    return user;
+};
+
+console.log(createUser('Marcus', 'Rome'));

Exercises/5-arrays.js

@@ -0,0 +1,23 @@
+'use strict';
+const obj = [
+    {
+        name: 'Marcus Aurelius',
+        phone: '+380445554433',
+    },
+    {
+        name: 'vasya',
+        phone: '+380445554432',
+    },
+];
+
+const findPhoneByName = name => {
+    for (const i of obj) {
+        if (i.name === name) {
+            return i.phone;
+        }
+    }
+};
+
+console.log(findPhoneByName('Marcus Aurelius'));
+
+

Exercises/6-hash.js

@@ -0,0 +1,18 @@
+'use strict';
+const obj = {
+    marcus: {
+        name: 'Marcus Aurelius',
+        phone: '+380445554433',
+    },
+    vasya: {
+        name: 'vasya',
+        phone: '+380445554432',
+    },
+};
+
+const findPhoneByName = name => `${name} phone number: ${obj[name].phone}`;
+
+console.log(findPhoneByName('marcus'));
+
+
+