JSFiddle - React, Tailwind, and code Playground
HTML
<div id="results">
</div>
<div>
<svg>
<g>
<foreignObject>
<div>foobar</div>
</foreignObject>
</g>
</svg>
</div>
JavaScript
function find(selector) {
var nodes = document.querySelectorAll(selector);
jQuery('#results').append('<p>' + selector + ': ' + (nodes.length === 0 ? 'NOT FOUND' : (nodes.length + ' nodes found')) + '</p>');
}
find('div');
find('svg');
find('g');
find('foreignObject');