JSFiddle - React, Tailwind, and code Playground

HTML

<script src="//cdnjs.cloudflare.com/ajax/libs/lodash.js/2.4.1/lodash.compat.min.js"></script>
<input id='anonFunction'/>
<input id='noReturnAnonFunction'/>
<input id='function'/>
<div id='output'>
    
</div>

JavaScript

$(document).ready(function(){
    $('#anonFunction').on('keyup', function () {
        return _.debounce(debounceIt, 500, false);
    });
    $('#noReturnAnonFunction').on('keyup', function () {
        _.debounce(debounceIt, 500, false);
    });
    $('#function').on('keyup', _.debounce(debounceIt, 500, false));
});

function debounceIt(){
    $('#output').append('debounced');
}