Rsa97

let str = '<h1>Я</h1>\n<p>Помню</p>\n<h1>Чудное</h1>\n<p>Мгновенье</p>';
let div = document.createElement('div');
div.innerHTML = str;
let ps = div.getElementsByTagName('p');

prices = {
  khabarovsk: {
    moscow: 1000,
    spb: 1000
  },
  moscow: {
    khabarovsk: 1000,
    spb: 500
  },
  spb: {
    khabarowsk: 1000,
    moscow: 500
  }
};
$('.final_price').html(prices[$('#select1').val()][$('#select2').val()]);

$('.click-to-remove-class').click() {
  $($(this).data('selector-where-to-remove-class')).removeClass('d-none');
}

<a href='#' id='novosib-button' class='click-to-remove-class' data-selector-where-to-remove-class = '#novosib-city'>
  Click here
</a>
<div id='novosib-city' class='d-none'>...</div>

result = data.filter(function(el) { return el.name.toLowerCase().indexOf('le') == 0; });