Rewriting Project

1 files changed, 29 insertions, 0 deletions

diff --git a/node_modules/core-js/modules/esnext.map.reduce.js b/node_modules/core-js/modules/esnext.map.reduce.js
new file mode 100644
index 0000000..2b22fda
--- /dev/null
+++ b/node_modules/core-js/modules/esnext.map.reduce.js
@@ -0,0 +1,29 @@
+'use strict';
+var $ = require('../internals/export');
+var IS_PURE = require('../internals/is-pure');
+var anObject = require('../internals/an-object');
+var aFunction = require('../internals/a-function');
+var getMapIterator = require('../internals/get-map-iterator');
+var iterate = require('../internals/iterate');
+
+// `Map.prototype.reduce` method
+// https://github.com/tc39/proposal-collection-methods
+$({ target: 'Map', proto: true, real: true, forced: IS_PURE }, {
+  reduce: function reduce(callbackfn /* , initialValue */) {
+    var map = anObject(this);
+    var iterator = getMapIterator(map);
+    var noInitial = arguments.length < 2;
+    var accumulator = noInitial ? undefined : arguments[1];
+    aFunction(callbackfn);
+    iterate(iterator, function (key, value) {
+      if (noInitial) {
+        noInitial = false;
+        accumulator = value;
+      } else {
+        accumulator = callbackfn(accumulator, value, key, map);
+      }
+    }, { AS_ENTRIES: true, IS_ITERATOR: true });
+    if (noInitial) throw TypeError('Reduce of empty map with no initial value');
+    return accumulator;
+  }
+});