08-27-周三_17-09-29

node_modules/lodash/array/union.js

@@ -0,0 +1,24 @@
+var baseFlatten = require('../internal/baseFlatten'),
+    baseUniq = require('../internal/baseUniq'),
+    restParam = require('../function/restParam');
+
+/**
+ * Creates an array of unique values, in order, from all of the provided arrays
+ * using [`SameValueZero`](http://ecma-international.org/ecma-262/6.0/#sec-samevaluezero)
+ * for equality comparisons.
+ *
+ * @static
+ * @memberOf _
+ * @category Array
+ * @param {...Array} [arrays] The arrays to inspect.
+ * @returns {Array} Returns the new array of combined values.
+ * @example
+ *
+ * _.union([1, 2], [4, 2], [2, 1]);
+ * // => [1, 2, 4]
+ */
+var union = restParam(function(arrays) {
+  return baseUniq(baseFlatten(arrays, false, true));
+});
+
+module.exports = union;