JSFiddle - React, Tailwind, and code Playground

HTML

<div class="a e">ae
    <div class="b d">bd
        <div class="b c">bc</div>
    </div>
</div>

JavaScript

jQuery.fn.anyBodyHome = function (selector) {
    return this.is(selector) ? this
        : this.find(selector).first()
}

// test
console.log($('.d').anyBodyHome('.c'))
console.log($('.d').anyBodyHome('.d'))
console.log($('.d').anyBodyHome('.e'))