ali-hd/warmup-week_01-day_04-js-functions

Leap Year Warmup Exercise

Create a file named leapYear.js.

Write a function that will take any given year and return whether it is a leap year or not.

Remember that a leap year is:

• Every year that is evenly divisible by 4
• Except if it is evenly divisible by 100...
• Unless it is also divisible by 400

Test Data... Make sure it is working!

• 1997 is not a leap year, it should return false
• 1996 is a leap year, it should return true
• 1900 is not a leap year, it should return false
• 2000 is a leap year, it should return true

How to structure it...

• We want a custom function called isLeapYear that accepts a parameter of a year and returns true or false.
• isLeapYear(1997) // false
• isLeapYear(1996) // true
• isLeapYear(1900) // false
• isLeapYear(2000) // true

Bonus!

• Return a message if the user passes in a data type that is not a number
• Return a message if the user passes in a date that is before 0
• Watch a whole heap of information about leap years... http://www.youtube.com/watch?v=xX96xng7sAE