repo with tasks HowProgrammingWorks#2

Author: Elena Kononchuk

Exercises/1-let.js

@@ -1,5 +1,5 @@
-'use strict';
+"use strict";
 
-let name = 'Elena';
+let name = "Elena";
 
 module.exports = { name };

Exercises/2-const.js

@@ -1,4 +1,4 @@
-'use strict';
+"use strict";
 
 const year = 1987;
 

Exercises/3-hello.js

@@ -1,5 +1,7 @@
-'use strict';
+"use strict";
 
-const hello = name => 'Hello' + hello('Elena');
+const hello = (name) => {
+  console.log(`Greeting for ${name}`);
+};
 
 module.exports = { hello };

Exercises/4-range.js

@@ -1,5 +1,11 @@
-'use strict';
+"use strict";
 
-const range = null;
+const range = (start, end) => {
+  let array = [];
+  for (let i = start; i <= end; i++) {
+    array.push(i);
+  }
+  return array;
+};
 
 module.exports = { range };

Exercises/5-range-odd.js

@@ -1,5 +1,14 @@
-'use strict';
+"use strict";
 
-const rangeOdd = null;
+const rangeOdd = (start, end) => {
+  let array = [];
+  for (let i = start; i <= end; i++) {
+    if (i % 2 !== 0) {
+      array.push(i);
+    }
+  }
+  return array;
+};
+//console.log(rangeOdd(0, 5));
 
 module.exports = { rangeOdd };

Exercises/6-calculate.js

@@ -1,11 +1,16 @@
-'use strict';
+"use strict";
 
-const square = null;
+const square = (x) => x * x;
 
-const cube = null;
+const cube = (x) => x ** 3;
 
-const average = null;
-
-const calculate = null;
+const average = (a, b) => (a + b) / 2;
+let array = [];
+const calculate = () => {
+  for (let i = 0; i <= 9; i++) {
+    array.push(average(square(i), cube(i)));
+  }
+  return array;
+};
 
 module.exports = { square, cube, average, calculate };

Exercises/7-objects.js

@@ -1,5 +1,15 @@
-'use strict';
+"use strict";
 
-const fn = null;
+const fn = () => {
+  const obj1 = { name: "Kate" };
+  let obj2 = { name: "Kate" };
+
+  obj1.name = "Winslet";
+  obj2.name = "Winslet";
+
+  const obj3 = "Kate Winslet";
+
+  console.log(obj1, obj2, obj3);
+};
 
 module.exports = { fn };

Exercises/8-create.js

@@ -1,5 +1,10 @@
-'use strict';
+"use strict";
 
-const createUser = null;
+const createUser = (name, city) => {
+  const obj1 = {};
+  obj1.name = name;
+  obj1.city = city;
+  return obj1;
+};
 
 module.exports = { createUser };

Exercises/9-array.js

@@ -1,7 +1,17 @@
-'use strict';
+"use strict";
 
-const phonebook = null;
+const phonebook = [
+  { name: "Marcus Aurelius", phone: "+380445554433" },
+  { name: "Kate Winslet", phone: "+380502678354" },
+  { name: "Robert de Niro", phone: "+380632678354" },
+];
 
-const findPhoneByName = null;
+const findPhoneByName = (name) => {
+  if (name === name) {
+  }
+  for (name of phonebook) {
+  }
+  return phone;
+};
 
 module.exports = { phonebook, findPhoneByName };

Exercises/a-hash.js

@@ -1,7 +1,13 @@
-'use strict';
+"use strict";
 
-const phonebook = null;
+const phonebook = {
+  marcus: { name: "Marcus Aurelius", phone: "+380445554433" },
+  kate: { name: "Kate Winslet", phone: "+380502678354" },
+  robert: { name: "Robert de Niro", phone: "+380632678354" },
+};
 
-const findPhoneByName = null;
+const findPhoneByName = (name) => {
+  return phone;
+};
 
 module.exports = { phonebook, findPhoneByName };