JSFiddle - React, Tailwind, and code Playground

by lindychen

HTML

<div class="widget_shopping_cart_content">
  <a href="https://www.test.com/checkout/" class="elementor-button elementor-button--checkout elementor-size-md">
    <span class="elementor-button-text">Checkout</span>
  </a>
</div>

JavaScript

document.querySelector('.widget_shopping_cart_content').addEventListener('click', function(event) {
  if (event.target.className() == "elementor-button elementor-button--checkout elementor-size-md") {
    event.currentTarget.href = 'https://www.test.com/checkout/?coupon_code=xxxx';
  }
});