axe-core/lib/checks/keyboard/page-has-elm.js

Accessibility engine for automated Web UI testing

if (!options || !options.selector || typeof options.selector !== 'string') {
	throw new TypeError('visible-in-page requires options.selector to be a string');
}

const matchingElms = axe.utils.querySelectorAll(virtualNode, options.selector);
this.relatedNodes(matchingElms.map(vNode => vNode.actualNode));
return matchingElms.length > 0;