sumOfPositive.ts

/*
    https://www.codewars.com/kata/5715eaedb436cf5606000381

    You get an array of numbers, return the sum of all of the positives ones.

    Example: [1,-4,7,12] => 1 + 7 + 12 = 20

    Note: if there is nothing to sum, the sum is default to 0.
*/

export function positiveSum(arr:number[]):number {
    let sum: number = 0;
    
    arr.forEach(x => {
      if (x >= 0) {
        sum += x;
      }
    });
    
    return sum;
}