更新

TongjiUniApp/node_modules/licia/reduce.js

@@ -0,0 +1,38 @@
+var optimizeCb = require('./optimizeCb');
+var isArrLike = require('./isArrLike');
+var isUndef = require('./isUndef');
+var keys = require('./keys');
+exports = createReduce(1);
+exports.create = createReduce;
+function createReduce(dir) {
+    return function(obj, iterator, initial, ctx) {
+        iterator = optimizeCb(iterator, ctx);
+        var i, len, key;
+        if (isArrLike(obj)) {
+            len = obj.length;
+            i = dir > 0 ? 0 : len - 1;
+            if (isUndef(initial)) {
+                initial = obj[i];
+                i += dir;
+            }
+            for (; i < len && i >= 0; i += dir) {
+                initial = iterator(initial, obj[i], i, obj);
+            }
+        } else {
+            var _keys = keys(obj);
+            len = _keys.length;
+            i = dir > 0 ? 0 : len - 1;
+            if (isUndef(initial)) {
+                initial = obj[_keys[i]];
+                i += dir;
+            }
+            for (; i < len && i >= 0; i += dir) {
+                key = _keys[i];
+                initial = iterator(initial, obj[key], key, obj);
+            }
+        }
+        return initial;
+    };
+}
+
+module.exports = exports;