JSFiddle - React, Tailwind, and code Playground

by oscard

HTML

<form action="" method="post" id="frm_test">
    <input type="text" name="card[]" value="" />
    <input type="text" name="card[]" value="" />
    <input type="text" name="card[]" value="" />
    <input type="submit" value="ok" />
</form>

JavaScript

$("#frm_test").submit(function (e) {
    var value ="";
    $("input[name^='card']").each(function () {
            value +=$(this).val()+',';
    });
    alert(value.substring(0,value.length-1));
    e.preventDefault();
});