JSFiddle - React, Tailwind, and code Playground

HTML

<script src="https://code.jquery.com/jquery-2.1.4.min.js"></script>
<script src="https://igorescobar.github.io/jQuery-Mask-Plugin/js/jquery.mask.min.js"></script>
<input type="radio" name="radioCpfcnpj" value="CPF" checked>CPF
<input type="radio" name="radioCpfcnpj" value="CNPJ">CNPJ
<input type="text" id="cpfcnpj" />

JavaScript

$("[name='radioCpfcnpj']").click(function(){
   var cpfcnpj = $("#cpfcnpj");
   
   cpfcnpj.val('');

    if ($(this).val() == "CPF"){
        cpfcnpj.mask("999.999.999-99");
    } else {
        cpfcnpj.mask("99.999.999/9999-99");
    }
    
    cpfcnpj.focus();
});

$("[value='CPF']").trigger("click");