add book.js

2018-03-03 12:11:07 +08:00
parent 51d82157f0
commit a22a8a1bd3
435 changed files with 27430 additions and 0 deletions
--- a/node_modules/lodash/lang/isElement.js
+++ b/node_modules/lodash/lang/isElement.js
@ -0,0 +1,24 @@
+var isObjectLike = require('../internal/isObjectLike'),
+    isPlainObject = require('./isPlainObject');
+
+/**
+ * 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('<body>');
+ * // => false
+ */
+function isElement(value) {
+  return !!value && value.nodeType === 1 && isObjectLike(value) && !isPlainObject(value);
+}
+
+module.exports = isElement;