javascript - 如何获取用户在 SumoSelect 中选择的值？

Question

我有一个各个国家/地区的下拉列表，我有一个代表每个国家/地区信息的对象数组。我已经通过 sumoselect 实现了下拉菜单.我想要的是—— 根据用户单击的值，我想从数组中获取该特定国家/地区的数据并显示它。 例如，如果我从下拉列表中选择新西兰，那么我想查看新西兰的数据。我该怎么做？提前致谢!

$(document).ready(function () {
            var countryData={"usa":
              "The U.S. is a country of 50 states covering a vast swath of North America, with Alaska in the northwest and Hawaii extending the nation’s presence into the Pacific Ocean. Major Atlantic Coast cities are New York, a global finance and culture center, and capital Washington, DC. Midwestern metropolis Chicago is known for influential architecture and on the west coast, Los Angeles' Hollywood is famed for filmmaking.", 
              "india": "India is a vast South Asian country with diverse terrain – from Himalayan peaks to Indian Ocean coastline – and history reaching back 5 millennia. In the north, Mughal Empire landmarks include Delhi’s Red Fort complex and massive Jama Masjid mosque, plus Agra’s iconic Taj Mahal mausoleum. Pilgrims bathe in the Ganges in Varanasi, and Rishikesh is a yoga centre and base for Himalayan trekking." ,
              "england" : "England, birthplace of Shakespeare and The Beatles, is a country in the British Isles bordering Scotland and Wales. The capital, London, on the River Thames, is home of Parliament, Big Ben and the 11th-century Tower of London. It's also a multicultural, modern hub for the arts and business. Other large cities are Manchester, Birmingham, Liverpool, Bristol and the university centres of Oxford and Cambridge.",
              "new-zealand": "New Zealand is a country in the southwestern Pacific Ocean consisting of 2 main islands, both marked by volcanoes and glaciation. Capital Wellington, on the North Island, is home to Te Papa Tongarewa, the expansive national museum. Wellington’s dramatic Mt. Victoria, along with the South Island’s Fiordland and Southern Lakes, stood in for mythical Middle Earth in Peter Jackson’s 'Lord of the Rings' films.",
              "russia": "Russia, the world’s largest nation, borders European and Asian countries as well as the Pacific and Arctic oceans. Its landscape ranges from tundra and forests to subtropical beaches. It’s famous for Moscow's Bolshoi and St. Petersburg's Mariinsky ballet companies. St. Petersburg, founded by Russian leader Peter the Great, has the baroque Winter Palace, now housing part of the State Hermitage Museum’s art collection."
              };
            $('.countries').SumoSelect();
     });

<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/jquery.sumoselect/3.0.2/sumoselect.min.css">

<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery.sumoselect/3.0.2/jquery.sumoselect.min.js"></script>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<select class="countries">
<option value="usa">USA</option>
<option value="india">India</option>
<option value="england">England</option>
<option value="new-zealand">New Zealand</option>
<option value="russia">Russia</option>
</select>

Answer 1

您可以使用 change 事件和 SumoSelect 来访问所选值。

$(document).ready(function () {
  var countryData={"usa":
    "The U.S. is a country of 50 states covering a vast swath of North America, with Alaska in the northwest and Hawaii extending the nation’s presence into the Pacific Ocean. Major Atlantic Coast cities are New York, a global finance and culture center, and capital Washington, DC. Midwestern metropolis Chicago is known for influential architecture and on the west coast, Los Angeles' Hollywood is famed for filmmaking.", 
    "india": "India is a vast South Asian country with diverse terrain – from Himalayan peaks to Indian Ocean coastline – and history reaching back 5 millennia. In the north, Mughal Empire landmarks include Delhi’s Red Fort complex and massive Jama Masjid mosque, plus Agra’s iconic Taj Mahal mausoleum. Pilgrims bathe in the Ganges in Varanasi, and Rishikesh is a yoga centre and base for Himalayan trekking." ,
    "england" : "England, birthplace of Shakespeare and The Beatles, is a country in the British Isles bordering Scotland and Wales. The capital, London, on the River Thames, is home of Parliament, Big Ben and the 11th-century Tower of London. It's also a multicultural, modern hub for the arts and business. Other large cities are Manchester, Birmingham, Liverpool, Bristol and the university centres of Oxford and Cambridge.",
    "new-zealand": "New Zealand is a country in the southwestern Pacific Ocean consisting of 2 main islands, both marked by volcanoes and glaciation. Capital Wellington, on the North Island, is home to Te Papa Tongarewa, the expansive national museum. Wellington’s dramatic Mt. Victoria, along with the South Island’s Fiordland and Southern Lakes, stood in for mythical Middle Earth in Peter Jackson’s 'Lord of the Rings' films.",
    "russia": "Russia, the world’s largest nation, borders European and Asian countries as well as the Pacific and Arctic oceans. Its landscape ranges from tundra and forests to subtropical beaches. It’s famous for Moscow's Bolshoi and St. Petersburg's Mariinsky ballet companies. St. Petersburg, founded by Russian leader Peter the Great, has the baroque Winter Palace, now housing part of the State Hermitage Museum’s art collection."
    };
  var mySelect = $('select.countries').SumoSelect();
  $('select.countries').on('change', function() {
    $('#countryInfo').text(countryData[mySelect.value]);
  })
});

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery.sumoselect/3.0.2/jquery.sumoselect.min.js"></script>
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/jquery.sumoselect/3.0.2/sumoselect.min.css">
<select class="countries">
<option value="usa">USA</option>
<option value="india">India</option>
<option value="england">England</option>
<option value="new-zealand">New Zealand</option>
<option value="russia">Russia</option>
</select>
<div id='countryInfo'></div>