doipjs/node_modules/@sinonjs/samsam/lib/is-element.js

"use strict";

var div = typeof document !== "undefined" && document.createElement("div");

/**
 * Returns `true` when `object` is a DOM element node.
 *
 * Unlike Underscore.js/lodash, this function will return `false` if `object`
 * is an *element-like* object, i.e. a regular object with a `nodeType`
 * property that holds the value `1`.
 *
 * @alias module:samsam.isElement
 * @param {object} object The object to examine
 * @returns {boolean} Returns `true` for DOM element nodes
 */
function isElement(object) {
    if (!object || object.nodeType !== 1 || !div) {
        return false;
    }
    try {
        object.appendChild(div);
        object.removeChild(div);
    } catch (e) {
        return false;
    }
    return true;
}

module.exports = isElement;