Lab2-Reusable

.eslintrc.json

@@ -18,7 +18,7 @@
     ],
     "linebreak-style": [
       "error",
-      "unix"
+      "windows"
     ],
     "quotes": [
       "error",

Exercises/1-let.js

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

Exercises/2-const.js

@@ -1,5 +1,5 @@
 'use strict';
 
-const year = undefined;
+const year = 2004;
 
 module.exports = { year };

Exercises/3-hello.js

@@ -1,5 +1,7 @@
 'use strict';
 
-const hello = null;
+const hello = function(name) {
+  console.log('Hello, ' + name);
+};
 
 module.exports = { hello };

Exercises/4-range.js

@@ -1,5 +1,12 @@
 'use strict';
 
-const range = null;
+const range = (start, end) => {
+  let index = start;
+  const array = [];
+  for (index; index <= end; index++) {
+    array.push(index);
+  }
+  return array;
+};
 
 module.exports = { range };

Exercises/5-range-odd.js

@@ -1,5 +1,12 @@
 'use strict';
 
-const rangeOdd = null;
+const rangeOdd = (start, end) => {
+  let index = start;
+  const array = [];
+  for (index; index <= end; index++) {
+    if (index % 2) array.push(index);
+  }
+  return array;
+};
 
 module.exports = { rangeOdd };

Exercises/6-calculate.js

@@ -1,11 +1,18 @@
 'use strict';
 
-const square = null;
+const square = (x) => x * x;
 
-const cube = null;
+const cube = (x) => x ** 3;
 
-const average = null;
+const average = (a, b) => (a + b) / 2;
 
-const calculate = null;
+const calculate = () => {
+  const array = [];
+  for (let i = 0; i < 10; i++) {
+    const element = average(square(i), cube(i));
+    array.push(element);
+  }
+  return array;
+};
 
 module.exports = { square, cube, average, calculate };

Exercises/7-objects.js

@@ -1,5 +1,11 @@
 'use strict';
 
-const fn = null;
+const fn = () => {
+  let obj1 = { name: 'Illia' };
+  const obj2 = { name: 'Ivan' };
+  obj1.name = 'wow';
+  obj2.name = 'cccp';
+  obj1 = { name: 'wonderful' };
+};
 
 module.exports = { fn };

Exercises/8-create.js

@@ -1,5 +1,8 @@
 'use strict';
 
-const createUser = null;
+const createUser = (personName, personCity) => ({
+  name: personName,
+  city: personCity,
+});
 
 module.exports = { createUser };

Exercises/9-array.js

@@ -1,7 +1,15 @@
 'use strict';
 
-const phonebook = null;
+const phonebook = [
+  { name: 'illia', phone: '+380970666481' },
+  { name: 'misha', phone: '+380930132990' },
+  { name: 'vanya', phone: '+380501070675' },
+  { name: 'victor', phone: '+380674765177' },
+];
 
-const findPhoneByName = null;
+const findPhoneByName = (name) => {
+  for (const man of phonebook)
+    if (man.name === name) return man.phone;
+};
 
 module.exports = { phonebook, findPhoneByName };

Exercises/a-hash.js

@@ -1,7 +1,12 @@
 'use strict';
 
-const phonebook = null;
+const phonebook = {
+  illia: '+380970666481',
+  misha: '+380930132990',
+  vanya: '+380501070675',
+  victor: '+380674765177',
+};
 
-const findPhoneByName = null;
+const findPhoneByName = (name) => phonebook[name];
 
 module.exports = { phonebook, findPhoneByName };