diff --git a/README.md b/README.md
index cca9c9f4a..8296bfce8 100644
--- a/README.md
+++ b/README.md
@@ -1,5 +1,5 @@
 1. Replace `<your_account>` with your GitHub username in the link
-    - [DEMO LINK](https://<your_account>.github.io/js_employees_table_DOM/)
+    - [DEMO LINK](https://Banderos14.github.io/js_employees_table_DOM/)
 2. Follow [this instructions](https://mate-academy.github.io/layout_task-guideline/)
     - Run `npm run test` command to test your code;
     - Run `npm run test:only -- -n` to run fast test ignoring linter;
@@ -44,11 +44,11 @@ Start table:
 ```
 - Add qa attributes for each input field:
 ```
- data-qa="name" 
- data-qa="position" 
- data-qa="office" 
- data-qa="age" 
- data-qa="salary" 
+ data-qa="name"
+ data-qa="position"
+ data-qa="office"
+ data-qa="age"
+ data-qa="salary"
 ```
 - Select should have 6 options: `Tokyo`, `Singapore`, `London`, `New York`, `Edinburgh`, `San Francisco`.
 - Use texts for labels and buttons from the screenshot below.
@@ -64,7 +64,7 @@ Start table:
 - Notification titles and descriptions are up to you.
 - Add qa attribute for notification: `data-qa="notification"` and class `error`/`success` depending on the result.
 
-##### Implement editing of table cells by double-clicking on them (optional). 
+##### Implement editing of table cells by double-clicking on them (optional).
 - Double click on the cell of the table, which should remove the text, and append input with `cell-input` class.
 - The input value should be replaced by the input text.
 - Only one cell can be edited at a time.
diff --git a/src/scripts/main.js b/src/scripts/main.js
index a765fdb1d..c79331c2a 100644
--- a/src/scripts/main.js
+++ b/src/scripts/main.js
@@ -1,3 +1,308 @@
 'use strict';
 
-// write code here
+const thead = document.querySelector('thead');
+const tbody = document.querySelector('tbody');
+
+// -1 потому что мы изначально не делаем никакое действие сортировки
+let currentColumn = -1;
+// asc - ascending
+let currentDirection = 'asc';
+
+thead.addEventListener('click', (e) => {
+  if (e.target.tagName !== 'TH') {
+    return;
+  }
+
+  const rows = Array.from(tbody.querySelectorAll('tr'));
+  const index = Array.from(e.target.parentNode.children).indexOf(e.target);
+
+  if (currentColumn === index) {
+    currentDirection = currentDirection === 'asc' ? 'desc' : 'asc';
+  } else {
+    currentColumn = index;
+    currentDirection = 'asc';
+  }
+
+  rows.sort((a, b) => {
+    let valueA = a.children[index].textContent.trim();
+    let valueB = b.children[index].textContent.trim();
+
+    if (index === 3 || index === 4) {
+      valueA = Number(valueA.replace(/[$,]/g, ''));
+      valueB = Number(valueB.replace(/[$,]/g, ''));
+    } else {
+      valueA = valueA.toLowerCase();
+      valueB = valueB.toLowerCase();
+    }
+
+    if (valueA < valueB) {
+      return currentDirection === 'asc' ? -1 : 1;
+    }
+
+    if (valueA > valueB) {
+      return currentDirection === 'asc' ? 1 : -1;
+    }
+
+    return 0;
+  });
+
+  tbody.append(...rows);
+});
+
+tbody.addEventListener('click', (e) => {
+  const row = e.target.closest('tr');
+
+  if (!row) {
+    return;
+  }
+
+  const activeRow = tbody.querySelector('.active');
+
+  if (activeRow) {
+    activeRow.classList.remove('active');
+  }
+
+  row.classList.add('active');
+});
+
+// Notification
+function showNotification(message, type) {
+  const old = document.querySelector('[data-qa="notification"]');
+
+  if (old) {
+    old.remove();
+  }
+
+  const notification = document.createElement('div');
+
+  notification.dataset.qa = 'notification';
+  notification.classList.add('notification');
+  notification.classList.add(type);
+  notification.textContent = message;
+
+  document.body.append(notification);
+}
+
+// Новое поле
+const form = document.createElement('form');
+
+form.classList.add('new-employee-form');
+
+// Name
+const nameLabel = document.createElement('label');
+
+nameLabel.textContent = 'Name: ';
+
+const nameInput = document.createElement('input');
+
+nameInput.name = 'name';
+nameInput.type = 'text';
+nameInput.dataset.qa = 'name';
+
+nameLabel.append(nameInput);
+form.append(nameLabel);
+
+// Position
+const positionLabel = document.createElement('label');
+
+positionLabel.textContent = 'Position: ';
+
+const positionInput = document.createElement('input');
+
+positionInput.name = 'position';
+positionInput.type = 'text';
+positionInput.dataset.qa = 'position';
+
+positionLabel.append(positionInput);
+form.append(positionLabel);
+
+// Office
+const officeLabel = document.createElement('label');
+
+officeLabel.textContent = 'Office: ';
+
+const officeSelect = document.createElement('select');
+
+officeSelect.name = 'office';
+officeSelect.dataset.qa = 'office';
+
+const defaultOfficeOption = document.createElement('option');
+
+defaultOfficeOption.value = '';
+defaultOfficeOption.textContent = 'Select office';
+
+officeSelect.append(defaultOfficeOption);
+
+const offices = [
+  'Tokyo',
+  'Singapore',
+  'London',
+  'New York',
+  'Edinburgh',
+  'San Francisco',
+];
+
+offices.forEach((office) => {
+  const option = document.createElement('option');
+
+  option.value = office;
+  option.textContent = office;
+
+  officeSelect.append(option);
+});
+
+officeLabel.append(officeSelect);
+form.append(officeLabel);
+
+// Age
+const ageLabel = document.createElement('label');
+
+ageLabel.textContent = 'Age: ';
+
+const ageInput = document.createElement('input');
+
+ageInput.name = 'age';
+ageInput.type = 'number';
+ageInput.dataset.qa = 'age';
+
+ageLabel.append(ageInput);
+form.append(ageLabel);
+
+// Salary
+const salaryLabel = document.createElement('label');
+
+salaryLabel.textContent = 'Salary: ';
+
+const salaryInput = document.createElement('input');
+
+salaryInput.name = 'salary';
+salaryInput.type = 'number';
+salaryInput.dataset.qa = 'salary';
+
+salaryLabel.append(salaryInput);
+form.append(salaryLabel);
+
+const submitButton = document.createElement('button');
+
+submitButton.type = 'submit';
+submitButton.textContent = 'Save to table';
+
+form.append(submitButton);
+
+form.addEventListener('submit', (e) => {
+  e.preventDefault();
+
+  const nameEmployer = nameInput.value.trim();
+  const position = positionInput.value.trim();
+  const office = officeSelect.value;
+  const age = Number(ageInput.value);
+  const salary = salaryInput.value.trim();
+
+  if (nameEmployer.length < 4) {
+    showNotification('Name is too short', 'error');
+
+    return;
+  }
+
+  if (!position) {
+    showNotification('Position is required', 'error');
+
+    return;
+  }
+
+  if (!office) {
+    showNotification('Office is required', 'error');
+
+    return;
+  }
+
+  if (age < 18 || age > 90) {
+    showNotification('Age is invalid', 'error');
+
+    return;
+  }
+
+  if (!salary) {
+    showNotification('Salary is required', 'error');
+
+    return;
+  }
+
+  const tr = document.createElement('tr');
+
+  const tdName = document.createElement('td');
+
+  tdName.textContent = nameEmployer;
+
+  const tdPosition = document.createElement('td');
+
+  tdPosition.textContent = position;
+
+  const tdOffice = document.createElement('td');
+
+  tdOffice.textContent = office;
+
+  const tdAge = document.createElement('td');
+
+  tdAge.textContent = age;
+
+  const tdSalary = document.createElement('td');
+
+  tdSalary.textContent = `$${Number(salary).toLocaleString()}`;
+
+  tr.append(tdName, tdPosition, tdOffice, tdAge, tdSalary);
+  tbody.append(tr);
+
+  form.reset();
+  showNotification('Employee added', 'success');
+});
+
+document.body.append(form);
+
+// Редактирование ячеек
+let editingCell = null;
+
+tbody.addEventListener('dblclick', (e) => {
+  const cell = e.target.closest('td');
+
+  if (!cell) {
+    return;
+  }
+
+  if (cell.querySelector('input')) {
+    return;
+  }
+
+  if (editingCell) {
+    return;
+  }
+
+  editingCell = cell;
+
+  const initialValue = cell.textContent.trim();
+  const input = document.createElement('input');
+
+  input.classList.add('cell-input');
+  input.value = initialValue;
+
+  cell.textContent = '';
+  cell.append(input);
+  input.focus();
+
+  function saveCellValue() {
+    const newValue = input.value.trim();
+
+    cell.textContent = newValue || initialValue;
+    editingCell = null;
+  }
+
+  input.addEventListener('blur', () => {
+    saveCellValue();
+  });
+
+  input.addEventListener('keydown', (eventInput) => {
+    if (eventInput.key === 'Enter') {
+      input.blur();
+    }
+  });
+});