JSFiddle - React, Tailwind, and code Playground

HTML

<p class="sas">Привет!</p>
<p class="sas">Привет!</p>
<p class="sas">Привет!</p>
<p class="sas">Привет!</p>
<p class="sas">Привет!</p>
<button id="btn">button</button>

JavaScript

function func(event) {
	this.elems.forEach((i) => {
  	i.style.color = this.clr;
  });
}

let btn = document.querySelector("#btn");
let sas = document.querySelectorAll(".sas");
btn.addEventListener("click", {handleEvent: func, clr: "red", elems: sas});