JSFiddle - React, Tailwind, and code Playground

HTML

<div ng-app>
Name: <input class='firstname' ng-model='firstname' />
<p>
    <a href='#' id='setFirstName'>Set name</a>
</p> 
    <p>Model value: <span ng-bind='firstname'></span></p>
    
    </div>

JavaScript

$('#setFirstName').click(function() {
    $('input.firstname').val('Test Name');
});