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README.md

Project JavaScript D1 Date Formatter

  • Function Declarations
  • Calling a Function
  • Parameters and Arguments
  • Default Parameters
  • Return
  • Helper Functions
  • Function Expressions
  • Arrow Functions
  • Concise Body Arrow Functions

If you are not familier with them please download Learn JavaScript eBook at https://codingwithbasir.com/learn-javascript

Project Title: Date Formatter

  1. Create a html file with your name like john.html

  2. Add current code to that file:

<!DOCTYPE html>
<html>
  <body>
    <script>
      // your code here
    </script>
  </body>
</html>
  1. Define variables for date parts:
  • year: 2019
  • month: 10
  • day: 9
  • dayOfWeek: 2

All variables are number.

  1. Declare a function named showDayName that get dayOfWeek (number) and log day name into the console. For example it gets 1 and log Sunday, 2 and log Monday, etc.

  2. Declare a function named convert2String that convert a number to string. If number is less that 10, it puts a 0 befor it. Example: 2 => '02'

  3. Declare a function named formatDate with 3 parameters (year, month, day) and return a string with this format yyy/mm/dd. Note: Use convert2String function from previous step.

  4. Declare a function named formatDateChristmas with 3 parameters (year, month, day) and return a the result of formatDate function from pervious step. Use default parameters to show 2020/01/01 if this function is called without parameters.

  5. Declare a function expression named nextYear that get a year and return next year. Call formatDate with nextYear(year) as first parameter and month and day for next 2 parameters.

  6. Declare a function named formatDateConcised with arrow functions that implements formatDate functionality with concise format.