# Discovering C++

I have recently fallen in love with C++. So much so that I have decided to switch gears from a web developer to focus solely on C++. I am still keeping my other Jamstack projects current. However, instead of spending the lion's share of my time debugging RedwoodJS, GatsbyJS, TailwindCSS, Deno issues I am focusing 90% of my energy on learning C++. 

So far this month I have onboarded a lot of information from various sources. Currently, I have:

- Completed the Codecademy C++ course (within the 7-day window so I did not have to pay $200+ for a subscription).

- In the process of reading two books "How Not To Program in C++" && "Learn C++ Quickly". 

- Just over 33.3333% through the excellent site  [LearnCPP.com ](https://www.learncpp.com/) 

- Compiling and studying flashcards of essential C++ syntax and terminology ( [NeuraCache ](https://apps.apple.com/us/app/neuracache-memory-is-a-choice/id1450923453) is a great iOS flashcard app that syncs with Evernote).

It has been a very fun journey, I literally dream at night about C++ and will wake up in the middle of the night just to think about how to solve a pesky C++ bug. While I was going through the "Control Flow" chapter in LearnCPP.com a lot of it was going over my head. I was tempted to just move on and figure it out later. However, when I skipped past it I felt guilty like I was cheating myself. So, I pushed pause and began to focus solely on coding a lot `do-while`, `for`, `if/else` loops. It was then that I got stuck on a program where I was trying to find prime numbers in an array. 

After a solid half-day trying to figure it out I went to Stack Overflow for assistance. Posting on Stack Overflow scares me a bit. Getting downvoted or having your question closed stinks - getting filleted alive by experts for all to see on the internet really stinks. 

Well sometimes I guess that is the best way to learn because while [my question](https://stackoverflow.com/questions/68869485/finding-prime-numbers-in-an-array) was closed (maybe I could have worded it differently?) I did get some great pointers, which helped me to eventually get the program working correctly. 

During the process, I learned a lot too, which is what I was really going for. Here is the final code (see it  [live](https://onlinegdb.com/LSNF3cOB0) ):

**constants.h**
```
#pragma once
#ifndef CONSTANTS_H

#include <string>

namespace constants {

	constexpr int randomOne[12] = { 1,2,3,5,7,9,12,13,15,18,23,87 };
	constexpr int randomTwo[12] = { 2,4,6,8,11,13,17,22,43,1,317,822 };

}

#endif // !CONSTANTS_H

```
**main.cpp**
```
#include <iostream>
#include "constants.h"

int isPrime(int x) 
{
	int count = 0;

	for (int j = 1; j <= x; ++j) 
	{
		if (x % j == 0) 
		{
			count++;
		}
	}
	if (count == 2)
	{
		std::cout << x << " is prime.\n";
	}
	else
		std::cout << x << " is NOT prime.\n";

	return 0;
}

int main() 
{
	for (int i{ 0 }; i <= 11; ++i) 
	{
		isPrime(constants::randomOne[i]);				
	}	
}
```