jQuery Input Field Filter #jquery #form

jquery-filter-by-field.js

$('.city-input').keyup(function() {
  filter(this);
});

function filter(element) {
  var value = $(element).val().toLowerCase();
  $('[data-filter]').each(function() {
    var $this = $(this),
      lower = $this.data('filter').toLowerCase();
    if (lower.indexOf(value) > -1) {
      $this.show();
    } else {
      $this.hide();
    }
  });
}