add some packages

node_modules/core-js/modules/_array-reduce.js

@@ -0,0 +1,28 @@
+var aFunction = require('./_a-function');
+var toObject = require('./_to-object');
+var IObject = require('./_iobject');
+var toLength = require('./_to-length');
+
+module.exports = function (that, callbackfn, aLen, memo, isRight) {
+  aFunction(callbackfn);
+  var O = toObject(that);
+  var self = IObject(O);
+  var length = toLength(O.length);
+  var index = isRight ? length - 1 : 0;
+  var i = isRight ? -1 : 1;
+  if (aLen < 2) for (;;) {
+    if (index in self) {
+      memo = self[index];
+      index += i;
+      break;
+    }
+    index += i;
+    if (isRight ? index < 0 : length <= index) {
+      throw TypeError('Reduce of empty array with no initial value');
+    }
+  }
+  for (;isRight ? index >= 0 : length > index; index += i) if (index in self) {
+    memo = callbackfn(memo, self[index], index, O);
+  }
+  return memo;
+};