JSFiddle - React, Tailwind, and code Playground

HTML

<input type="hidden" name="page_id" id="page_id" />
<input type="hidden" name="page_name" id="page_name" />

JavaScript

function insertIntoHiddenField(pageID,pageName)
{
    $('#page_id').val(pageID);
    $('#page_name').val(pageName);
}

insertIntoHiddenField("1", "index");
    console.log($('#page_id').val());
    console.log($('#page_name').val());