https://airshopapp.com/js/pricing-toggle.js

1(function setupPricingToggle() {
2  var toggleButtons = document.querySelectorAll('.pricing-toggle-btn')
3  if (!toggleButtons.length) return
4
5  function setBillingMode(mode) {
6    toggleButtons.forEach(function (btn) {
7      btn.classList.toggle('active', btn.getAttribute('data-billing') === mode)
8    })
9
10    document.querySelectorAll('.billing-original, .billing-promo, .billing-meta').forEach(function (el) {
11      var nextValue = el.getAttribute('data-' + mode)
12      if (nextValue) {
13        el.textContent = nextValue
14      }
15    })
16
17    document.querySelectorAll('.billing-plan-savings').forEach(function (el) {
18      var nextValue = el.getAttribute('data-' + mode) || ''
19      el.textContent = nextValue
20      el.classList.toggle('is-active', Boolean(nextValue))
21    })
22  }
23
24  toggleButtons.forEach(function (btn) {
25    btn.addEventListener('click', function () {
26      setBillingMode(btn.getAttribute('data-billing') || 'monthly')
27    })
28  })
29})()