JSFiddle - React, Tailwind, and code Playground

by jury1

HTML

<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.12.4/jquery.min.js"></script>
<div id="myid">Пункт меню</div>

JavaScript

now = new Date()
 if (now.getDay() == 0)
 $("#myid").addClass("class-Воскресенье");
 if (now.getDay() == 1)
 $("#myid").addClass("class-Понедельник");
 if (now.getDay() == 2)
   $("#myid").addClass("class-Вторник");
 if (now.getDay() == 3)
   $("#myid").addClass("class-Среда");
 if (now.getDay() == 4)
   $("#myid").addClass("class-Четверг");
 if (now.getDay() == 5)
   $("#myid").addClass("class-Пятница");
 if (now.getDay() == 6)
   $("#myid").addClass("class-Суббота");