fewTeens.js

const fixTeen =(n)=>{
	// TODO refactor to use the IN trick 
	if (n > 12 && n < 15 || n > 16 && n < 20){ return 0} else if (n > 0){return n} else {return null};
}


function noTeenSum(nums) {
	// return x;
	console.log(`The array is ${nums}`);
	return nums.reduce((a,b)=> {return fixTeen(a)  + fixTeen(b)}, 0)
}



console.log(noTeenSum([1, 2, 3])); // 6
console.log(noTeenSum([2, 13, 1])); // 3
console.log(noTeenSum([15, 16, 14])); // 3


/* 
INSTRUCTIONS
https://codingbat.com/prob/p182879

1) Given 3 int values, a b c, return their sum. 
2) However, if any of the values is a teen -- in the range 13..19 inclusive -- then that value counts as 0, 
3) except 15 and 16 do not count as a teens. 

a) Write a separate helper "public int fixTeen(int n) {"that takes in an int value and returns that value fixed for the teen rule. In this way, you avoid repeating the teen code 3 times (i.e. "decomposition"). Define the helper below and at the same indent level as the main noTeenSum().

*/