Topic: mdb-select: use js to select item by value

lengyuan free asked 5 years ago

Hi TeamMay I know how to use js to select a specific item by value?For example, I have a dropdown like below. I would like to auto-select language based on user cookie, which stored the language code (nl for example)

<div class="form-group"><label>Translation Language</label>
    <select id="tranlan" name="tranlan" class="mdb-select">
        <option value="en">English</option>
        <option value="ar">Arabic</option>
        <option value="bg">Bulgarian</option>
        <option value="cs">Czech</option>
        <option value="da">Danish</option>
        <option value="nl">Dutch</option>
        <option value="fi">Finnish</option>
        <option value="fr">French</option>
        <option value="de">German</option>
        <option value="el">Greek</option>
        <option value="he">Hebrew</option>
        <option value="hi">Hindi</option>
        <option value="hu">Hungarian</option>
        <option value="id">Indonesian</option>
        <option value="it">Italian</option>
        <option value="ja">Japanese</option>
        <option value="ko">Korean</option>
        <option value="ms">Malay</option>
        <option value="no">Norwegian</option>
        <option value="pl">Polish</option>
        <option value="pt">Portuguese</option>
        <option value="ro">Romanian</option>
        <option value="ru">Russian</option>
        <option value="sk">Slovak</option>
        <option value="sl">Slovenian</option>
        <option value="es">Spanish</option>
        <option value="sv">Swedish</option>
        <option value="th">Thai</option>
        <option value="tr">Turkish</option>
        <option value="uk">Ukrainian</option>
        <option value="vi">Vietnamese</option>

Jakub Strebeyko staff answered 5 years ago

Hi there lengyuan,

Thanks for reaching out through our forum! The task at hand is rather tricky, since what you see here as elements are not what is available for choosing in the browser. Our material select's script takes the and hides it from sight (as in display: none!important) so it can revived it with in its splendid material design features. As you can see for yourself in DevTools, the s are rendered anew as an plain li elements. As such they can be accessed with

$('.dropdown-content li').on('click', function() {
let value = $(this)[0].firstChild.outerText;

The only downturn here is that loose their attributes during the conversion, but it's nothing a simple language code matching utility couldn't handle. Hope it helps.

With Best Regards,

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Specification of the issue

  • User: Free
  • Premium support: No
  • Technology: MDB jQuery
  • MDB Version: -
  • Device: -
  • Browser: -
  • OS: -
  • Provided sample code: No
  • Provided link: No