From 9e86d8b5675b8f8a45206543bfce46014ac5017f Mon Sep 17 00:00:00 2001
From: SKostia <SKostia@github.com>
Date: Tue, 27 Dec 2022 14:59:35 -0500
Subject: [PATCH] All exercises have been done

---
 .gitignore               |  1 +
 Exercises/1-let.js       |  2 +-
 Exercises/2-const.js     |  2 +-
 Exercises/3-hello.js     |  2 +-
 Exercises/4-range.js     |  9 ++++++++-
 Exercises/5-range-odd.js |  8 +++++++-
 Exercises/6-calculate.js | 14 ++++++++++----
 Exercises/7-objects.js   | 10 +++++++++-
 Exercises/8-create.js    |  3 ++-
 Exercises/9-array.js     | 12 ++++++++++--
 Exercises/a-hash.js      |  8 ++++++--
 11 files changed, 56 insertions(+), 15 deletions(-)

diff --git a/.gitignore b/.gitignore
index ac1e8f7..c2af66f 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,3 +1,4 @@
 node_modules
 *.log
 .DS_Store
+._*
diff --git a/Exercises/1-let.js b/Exercises/1-let.js
index d705443..94aa658 100644
--- a/Exercises/1-let.js
+++ b/Exercises/1-let.js
@@ -1,5 +1,5 @@
 'use strict';
 
-let name = undefined;
+let name = 'Kostia';
 
 module.exports = { name };
diff --git a/Exercises/2-const.js b/Exercises/2-const.js
index 5512738..e4da8cb 100644
--- a/Exercises/2-const.js
+++ b/Exercises/2-const.js
@@ -1,5 +1,5 @@
 'use strict';
 
-const year = undefined;
+const year = 2002;
 
 module.exports = { year };
diff --git a/Exercises/3-hello.js b/Exercises/3-hello.js
index a597391..f871885 100644
--- a/Exercises/3-hello.js
+++ b/Exercises/3-hello.js
@@ -1,5 +1,5 @@
 'use strict';
 
-const hello = null;
+const hello = (arg) => console.log(`Greetings ${arg}`);
 
 module.exports = { hello };
diff --git a/Exercises/4-range.js b/Exercises/4-range.js
index 31bd852..a728ff2 100644
--- a/Exercises/4-range.js
+++ b/Exercises/4-range.js
@@ -1,5 +1,12 @@
 'use strict';
 
-const range = null;
+const range = (start, end) => {
+  const arr = [];
+  for (let i = 0; i <= end - start; i++) {
+    //arr.push(start + i);
+    arr[i] = start + i;
+  }
+  return arr;
+};
 
 module.exports = { range };
diff --git a/Exercises/5-range-odd.js b/Exercises/5-range-odd.js
index 54bb5b4..1632101 100644
--- a/Exercises/5-range-odd.js
+++ b/Exercises/5-range-odd.js
@@ -1,5 +1,11 @@
 'use strict';
 
-const rangeOdd = null;
+const rangeOdd = (start, end) => {
+  const arr = [];
+  for (let i = 0; i <= end - start; i++) {
+    if ((start + i) % 2 !== 0) arr.push(start + i);
+  }
+  return arr;
+};
 
 module.exports = { rangeOdd };
diff --git a/Exercises/6-calculate.js b/Exercises/6-calculate.js
index dfecf6b..418714e 100644
--- a/Exercises/6-calculate.js
+++ b/Exercises/6-calculate.js
@@ -1,11 +1,17 @@
 '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 result = [];
+  for (let i = 0; i <= 9; i++) {
+    result.push(average(square(i), cube(i)));
+  }
+  return result;
+};
 
 module.exports = { square, cube, average, calculate };
diff --git a/Exercises/7-objects.js b/Exercises/7-objects.js
index 0920026..83a3fb2 100644
--- a/Exercises/7-objects.js
+++ b/Exercises/7-objects.js
@@ -1,5 +1,13 @@
 'use strict';
 
-const fn = null;
+const fn = () => {
+  const obj = { name: 'something' };
+  let  obj1 = { name: 'smth else' };
+  obj.name = 'another smth';
+  obj1 = { lastname: 'another smth else :)' };
+  console.dir(obj);
+  console.dir(obj1);
+
+};
 
 module.exports = { fn };
diff --git a/Exercises/8-create.js b/Exercises/8-create.js
index ac27ddd..79f440a 100644
--- a/Exercises/8-create.js
+++ b/Exercises/8-create.js
@@ -1,5 +1,6 @@
 'use strict';
 
-const createUser = null;
+const createUser = (nameArg, cityArg) => ({ name: nameArg, city: cityArg });
 
 module.exports = { createUser };
+
diff --git a/Exercises/9-array.js b/Exercises/9-array.js
index 466c69a..9c6eda7 100644
--- a/Exercises/9-array.js
+++ b/Exercises/9-array.js
@@ -1,7 +1,15 @@
 'use strict';
 
-const phonebook = null;
+const phonebook = [
+  { name: 'Kostia', phone: '516 618 5532' },
+  { name: 'Marcus Aurelius', phone: '+380445554433' },
 
-const findPhoneByName = null;
+];
+
+const findPhoneByName = (name) => {
+  for (const pers of phonebook) {
+    if (pers.name === name) return pers.phone;
+  }
+};
 
 module.exports = { phonebook, findPhoneByName };
diff --git a/Exercises/a-hash.js b/Exercises/a-hash.js
index 466c69a..1d75f97 100644
--- a/Exercises/a-hash.js
+++ b/Exercises/a-hash.js
@@ -1,7 +1,11 @@
 'use strict';
 
-const phonebook = null;
+const phonebook = {
+  'Kostia': '516 618 5532',
+  'Marcus Aurelius': '+380445554433',
 
-const findPhoneByName = null;
+};
+
+const findPhoneByName = (name) => phonebook[name];
 
 module.exports = { phonebook, findPhoneByName };