scroll.js

// iffe
(function() {
  'use strict';

  const nav = [
    {
      element: '#home-button',
      target: '#scroll-to-home'
    },
    {
      element: '#couple-button',
      target: '#scroll-to-couple'
    },
    {
      element: '#story-button',
      target: '#scroll-to-story'
    },
    {
      element: '#events-button',
      target: '#scroll-to-events'
    },
    {
      element: '#people-button',
      target: '#scroll-to-people'
    },
    {
      element: '#faq-button',
      target: '#scroll-to-faq'
    },
    {
      element: '#rsvp-button',
      target: '#scroll-to-rsvp'
    }
  ];

  for(let i = 0; i < nav.length; i++) {
    let ele = document.querySelector(nav[i].element);


    ele.addEventListener('click', function() {
      document.querySelector('#scroll-to-rsvp').scrollIntoView({ behavior: 'smooth' });
    });
  }

})();