JSFiddle - React, Tailwind, and code Playground

HTML

<form id="zombieForm" method="post">
<select name="multi2" required>
            <option value=""></option>
            <option value="100">placeholder value 4</option>
            <option value="50">placeholder value 3</option>
            <option value="25">placeholder value 2</option>
            <option value="0">placeholder value 1</option>
        </select>
    <input type="submit" value="Submit" id="formButton" />
    </form>

JavaScript

$('#zombieForm').submit(function(event) {
    event.preventDefault();
    var yourArray = {};
    $.each($(this).serializeArray(), function() {
        yourArray[this.name] = this.value;
    });
    console.log(yourArray);
});