/** * lodash 3.0.0 (Custom Build) * Build: `lodash modern modularize exports="npm" -o ./` * Copyright 2012-2015 The Dojo Foundation * Based on Underscore.js 1.7.0 * Copyright 2009-2015 Jeremy Ashkenas, DocumentCloud and Investigative Reporters & Editors * Available under MIT license */ var isPlainObject = require('lodash.isplainobject'), support = require('lodash.support'); /** * Checks if `value` is object-like. * * @private * @param {*} value The value to check. * @returns {boolean} Returns `true` if `value` is object-like, else `false`. */ function isObjectLike(value) { return (value && typeof value == 'object') || false; } /** Used for native method references. */ var objectProto = Object.prototype; /** * Used to resolve the `toStringTag` of values. * See the [ES spec](https://people.mozilla.org/~jorendorff/es6-draft.html#sec-object.prototype.tostring) * for more details. */ var objToString = objectProto.toString; /** * Checks if `value` is a DOM element. * * @static * @memberOf _ * @category Lang * @param {*} value The value to check. * @returns {boolean} Returns `true` if `value` is a DOM element, else `false`. * @example * * _.isElement(document.body); * // => true * * _.isElement(''); * // => false */ function isElement(value) { return (value && value.nodeType === 1 && isObjectLike(value) && objToString.call(value).indexOf('Element') > -1) || false; } // Fallback for environments without DOM support. if (!support.dom) { isElement = function(value) { return (value && value.nodeType === 1 && isObjectLike(value) && !isPlainObject(value)) || false; }; } module.exports = isElement;