Add isBeforeDate, isAfterDate, isSameDate

snippets/isAfterDate.md

@@ -0,0 +1,13 @@
+### isAfterDate
+
+Check if a date is after another date.
+
+Use the greater than operator (`>`) to check if the first date comes after the second one.
+
+```js
+const isAfterDate = (dateA, dateB) => dateA > dateB;
+```
+
+```js
+isAfterDate(new Date(2010, 10, 21), new Date(2010, 10, 20)); // true
+```