feat(Calendar): render days

src/calendar/utils.ts

@@ -0,0 +1,12 @@
+export function compareMonth(date1: Date, date2: Date) {
+  const year1 = date1.getFullYear();
+  const year2 = date2.getFullYear();
+  const month1 = date1.getMonth();
+  const month2 = date2.getMonth();
+
+  if (year1 === year2) {
+    return month1 === month2 ? 0 : month1 > month2 ? 1 : -1;
+  }
+
+  return year1 > year2 ? 1 : -1;
+}