function isElement(node) {
	return !!(
		node &&
		(node.nodeName || // We are a direct element.
			(node.prop && node.attr && node.find))
	); // We have an on and find method part of jQuery API.
}
The software constructs all or part of a command, data structure, or record using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify how it is parsed or interpreted when it is sent to a downstream component.