flow like the river

BACK_BACK/node_modules/array-equal/index.js

@@ -0,0 +1,16 @@
+/**
+ * Compare arrays
+ *
+ * @param  {Array} arr1
+ * @param  {Array} arr2
+ * @return {Boolean} - Arrays are equals
+ */
+module.exports = function equal(arr1, arr2) {
+  var length = arr1.length
+  if (arr1 === arr2) return true
+  if (length !== arr2.length) return false
+  for (var i = 0; i < length; i++)
+    if (arr1[i] !== arr2[i])
+      return false
+  return true
+}