Add is_weekday

snippets/is_weekday.md

@@ -0,0 +1,24 @@
+---
+title: is_weekday
+tags: date,beginner
+---
+
+Checks if the given date is a weekday.
+
+- Use `datetime.datetime.weekday()` to get the day of the week as an integer.
+- Check if the day of the week is less than or equal to `4`.
+- Omit the second argument, `d`, to use a default value of `datetime.today()`.
+
+```py
+from datetime import datetime
+
+def is_weekday(d = datetime.today()):
+  return d.weekday() <= 4 
+```
+
+```py
+from datetime import date
+
+is_weekday(date(2020,10,25)) # False
+is_weekday(date(2020,10,28)) # True
+```