JSFiddle - React, Tailwind, and code Playground

HTML

<form action="" id="form">
    <select name="" id="select" multiple>
        <option value="1030">Projects</option>
        <option value="1032">Team</option>
        <option value="1038">Services</option>
        <option value="1050">Contact</option>
    </select>
    <input type="submit" value="Submit">
</form>

JavaScript

$("#form").on("submit", function(e){
    e.preventDefault(); // So you'll see the result
    $("#select").val([1030,1038,1050]);
});