add hw2

node_modules/dayjs/esm/plugin/objectSupport/index.js

@@ -0,0 +1,97 @@
+export default (function (o, c, dayjs) {
+  var proto = c.prototype;
+
+  var isObject = function isObject(obj) {
+    return obj !== null && !(obj instanceof Date) && !(obj instanceof Array) && !proto.$utils().u(obj) && obj.constructor.name === 'Object';
+  };
+
+  var prettyUnit = function prettyUnit(u) {
+    var unit = proto.$utils().p(u);
+    return unit === 'date' ? 'day' : unit;
+  };
+
+  var parseDate = function parseDate(cfg) {
+    var date = cfg.date,
+        utc = cfg.utc;
+    var $d = {};
+
+    if (isObject(date)) {
+      if (!Object.keys(date).length) {
+        return new Date();
+      }
+
+      var now = utc ? dayjs.utc() : dayjs();
+      Object.keys(date).forEach(function (k) {
+        $d[prettyUnit(k)] = date[k];
+      });
+      var d = $d.day || (!$d.year && !($d.month >= 0) ? now.date() : 1);
+      var y = $d.year || now.year();
+      var M = $d.month >= 0 ? $d.month : !$d.year && !$d.day ? now.month() : 0; // eslint-disable-line no-nested-ternary,max-len
+
+      var h = $d.hour || 0;
+      var m = $d.minute || 0;
+      var s = $d.second || 0;
+      var ms = $d.millisecond || 0;
+
+      if (utc) {
+        return new Date(Date.UTC(y, M, d, h, m, s, ms));
+      }
+
+      return new Date(y, M, d, h, m, s, ms);
+    }
+
+    return date;
+  };
+
+  var oldParse = proto.parse;
+
+  proto.parse = function (cfg) {
+    cfg.date = parseDate.bind(this)(cfg);
+    oldParse.bind(this)(cfg);
+  };
+
+  var oldSet = proto.set;
+  var oldAdd = proto.add;
+  var oldSubtract = proto.subtract;
+
+  var callObject = function callObject(call, argument, string, offset) {
+    if (offset === void 0) {
+      offset = 1;
+    }
+
+    var keys = Object.keys(argument);
+    var chain = this;
+    keys.forEach(function (key) {
+      chain = call.bind(chain)(argument[key] * offset, key);
+    });
+    return chain;
+  };
+
+  proto.set = function (unit, value) {
+    value = value === undefined ? unit : value;
+
+    if (unit.constructor.name === 'Object') {
+      return callObject.bind(this)(function (i, s) {
+        return oldSet.bind(this)(s, i);
+      }, value, unit);
+    }
+
+    return oldSet.bind(this)(unit, value);
+  };
+
+  proto.add = function (value, unit) {
+    if (value.constructor.name === 'Object') {
+      return callObject.bind(this)(oldAdd, value, unit);
+    }
+
+    return oldAdd.bind(this)(value, unit);
+  };
+
+  proto.subtract = function (value, unit) {
+    if (value.constructor.name === 'Object') {
+      return callObject.bind(this)(oldAdd, value, unit, -1);
+    }
+
+    return oldSubtract.bind(this)(value, unit);
+  };
+});