fix-stream-with-JS

const list = [];

function fixStream(streams) {
  let count_order = 0;
  let total = 0;
  let stream_group = [];

  streams = [].concat(...streams);

  streams.forEach((item, i, stream) => {
    total = 0;
    if (count_order % 3 === 0) {
      stream_group.push(
        Number(stream[i]),
        Number(stream[i + 1]),
        Number(stream[i + 2])
      );
      stream_group = stream_group.filter(
        (item) => !(isNaN(Number(item)) || item === null)
      );
      total = stream_group.reduce((a, b) => a + b, 0);

      if (total > 90) list.push(total);
      stream_group = [];
    }
    count_order++;
  });

  return list;
}

let stream_one = ['90', '20', null, null, null, '20', '35', '90', '60'];
let stream_two = ['34', 'Can', 'asdfasdf', 'Test', 'Veli', '20', '20', '15'];
let stream_three = ['75', '95', '0', '0', '20', '43', '0', '-15'];
let stream_four = ['25', '43', '105', '23', '-5'];
let stream_new = ['25', '43', '105', '23', '-5', '23'];

const dummy_streams_data = [
  stream_one,
  stream_two,
  stream_three,
  stream_four,
  [...stream_new],
];

const result = fixStream(dummy_streams_data);
console.log(result);
/* [ 110, 185, 110, 95, 123, 173 ] */