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3. JS Loops

Module 1 · Media Course's Objectives
Module 2 · Media Happy birthday Problem You are here
Module 3 · Media Repeating tasks with loops
Module 4 · Flowchart Loop flowchart
Module 5 · Media While Syntax
Module 6 · Media Print number's multiples up to 10
Module 7 · Media Odd Even
Module 8 · Media Fizzbuzz
Module 9 · Media Ship container Problem
Module 10 · Media Break Keyword
Module 11 · Media Continue Keyword
Module 12 · Media For Loop Syntax
Module 13 · Media Ship container with for loop
Module 14 · Media Pay your employees
Module 15 · Text Clothing-Sales Problem
Module 16 · Flowchart Nested loops flowchart
Module 17 · Text Nested loops matrix multiplication table
Module 18 · Text Prime numbers exercise

Close the course

Module 2 of 18 · Media

Happy birthday Problem

Kostas Diakogiannis

Happy Birthday to every User

Imagine that you are having a social network web application with 100.000 users. These users have store their personal information to your application like their name, username, access password, hobbies, interests AND their date of birth.

Imagine that you want to check everyday for every user, if it has it's birthday or not and if yes you want to give him a free premium account of your app for the next week.

Although you might already know how to accomplish this task for a specific user it is going to be extremely hard to achieve for 100.000 users. That means that you need to write 100.000 conditions and from them, detect which ones have birthday on the give day in order to give them the premium account.

That doesn't sound very efficient right?

Happy birthday Problem

3. JS Loops

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