completed the task

src/scripts/main.js

@@ -1,3 +1,52 @@
 'use strict';
 
-// write code here
+const li = document.querySelectorAll('li');
+const father = li[0].parentNode;
+
+function sortList(list) {
+  const resultList = Array.from(list).sort((firstPerson, secondPerson) => {
+    const firstPersonSalary = parseSalary(firstPerson.dataset.salary, 'salary');
+    const secondPersonSalary = parseSalary(
+      secondPerson.dataset.salary,
+      'salary',
+    );
+
+    return secondPersonSalary - firstPersonSalary;
+  });
+
+  for (const result of resultList) {
+    if (father) {
+      father.append(result);
+    }
+  }
+
+  return resultList;
+}
+
+function getEmployees(list) {
+  const arraysPersons = [];
+
+  for (const oneLi of list) {
+    arraysPersons.push({
+      name: oneLi.textContent,
+      position: oneLi.dataset.position,
+      salary: parseSalary(oneLi.dataset.salary, 'salary'),
+      age: parseSalary(oneLi.dataset.age, 'age'),
+    });
+  }
+
+  return arraysPersons;
+}
+
+sortList(li);
+getEmployees(sortList(li));
+
+function parseSalary(str, what) {
+  if (what === 'salary') {
+    return Number(str.slice(1).split(',').join('.'));
+  }
+
+  if (what === 'age') {
+    return Number(str);
+  }
+}