Show getTimezoneOffset function
Add function to extract date
Add function to add birth date
Add function to extract name of mother
Add function to extract string between strings
Add improved cat-algorithm
Add function to know find cat name in an email
Add function to add zero before day and month
Add function to find the oldest living cat
Add function to count arguments
Add function which checks argument in a function
Modify range function
Add sum function
Test to see Math object
Test to see array properties
Test to show array length