/**
 * @license
 * SPDX-License-Identifier: Apache-2.0
 */
/**
 * Library that provides safe getters for different node properties and
 * checks for clobbering.
 */
/** Gets a reasonable nodeName, even for clobbered nodes. */
export function getNodeName(node) {
    const nodeName = node.nodeName;
    // If the property is clobbered, assume it is an `HTMLFormElement`.
    return (typeof nodeName === 'string') ? nodeName : 'FORM';
}
/** Returns true if the object passed is a Text node. */
export function isText(node) {
    // The property cannot get clobbered on Text nodes.
    return node.nodeType === Node.TEXT_NODE;
}
/** Returns true if the object passed is an Element node. */
export function isElement(node) {
    const nodeType = node.nodeType;
    // If the property is clobbered, we can assume it is an `HTMLFormElement`, and
    // thus an `Element`.
    return (nodeType === Node.ELEMENT_NODE) || (typeof nodeType !== 'number');
}