JSFiddle - React, Tailwind, and code Playground

HTML

<!-- you should have this before the closing body tag -->
<div id="myformcontainer"></div>

JavaScript

function CreateAFormInsideMyDivAndSubmitIt(mots)
    {
        var mydiv = document.getElementById('myformcontainer').innerHTML = '<form id="reviseCombi" method="post" action="otherPage.php"><input name="input1" type="hidden" value="ok" /><input name="input2" type="hidden" value="'+ mots +'" /></form>';
        f=document.getElementById('reviseCombi');
        if(f){
        /*f.submit();*/
            alert('submitted!');
        }
    }


CreateAFormInsideMyDivAndSubmitIt('woohoo');