JSFiddle - React, Tailwind, and code Playground

HTML

<form id="frm1">
    <input id="input1" value="aaa" />
</form>

<form id="frm2">
    <input id="input1" value="bbb" />   
    <a id="link1" href="#"target="_self" title="13083536911 BOBBI L.  MENG looooooooooooooooooooooooooong name">aaa</a>
</form>

JavaScript

function getFieldByForm(anyForm, fieldId) {
    if(typeof(anyForm) == "string")
        anyForm = $("#" + anyForm);
    return anyForm.find("#" + fieldId);
}


alert(getFieldByForm("frm1", "input1").val());

alert(getFieldByForm($("#frm2"), "link1").val());