Function isNode

esquery.js:423–426

* Check whether the given value is an ASTNode or not. * @param {any} node The value to check. * @param {ESQueryOptions|undefined} options The options to use. * @returns {boolean} `true` if the value is an ASTNode.

(node, options)

 * @returns {boolean} `true` if the value is an ASTNode.
 */
function isNode(node, options) {
    const nodeTypeKey = (options && options.nodeTypeKey) || 'type';
    return node !== null && typeof node === 'object' && typeof node[nodeTypeKey] === 'string';
}

/**
 * Determines if the given node has a sibling that matches the