react app

react-app/node_modules/lodash/lang/isArray.js

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+var getNative = require('../internal/getNative'),
+    isLength = require('../internal/isLength'),
+    isObjectLike = require('../internal/isObjectLike');
+
+/** `Object#toString` result references. */
+var arrayTag = '[object Array]';
+
+/** Used for native method references. */
+var objectProto = Object.prototype;
+
+/**
+ * Used to resolve the [`toStringTag`](http://ecma-international.org/ecma-262/6.0/#sec-object.prototype.tostring)
+ * of values.
+ */
+var objToString = objectProto.toString;
+
+/* Native method references for those with the same name as other `lodash` methods. */
+var nativeIsArray = getNative(Array, 'isArray');
+
+/**
+ * Checks if `value` is classified as an `Array` object.
+ *
+ * @static
+ * @memberOf _
+ * @category Lang
+ * @param {*} value The value to check.
+ * @returns {boolean} Returns `true` if `value` is correctly classified, else `false`.
+ * @example
+ *
+ * _.isArray([1, 2, 3]);
+ * // => true
+ *
+ * _.isArray(function() { return arguments; }());
+ * // => false
+ */
+var isArray = nativeIsArray || function(value) {
+  return isObjectLike(value) && isLength(value.length) && objToString.call(value) == arrayTag;
+};
+
+module.exports = isArray;