lacuna stuff

lacuna.ts

const list = ['a', 'b', 'c', 'c', 'd', 'a', 'b', 'a', 'a', 'd', 'b'];

const findMin = (char1: string, char2: string, arr: Array<string>) : Number => {

  let char1Index = -1;
  let char2Index = -1;
  let min = Number.MAX_SAFE_INTEGER;

  for (let i = 0; i < arr.length; i++) {

    const el = arr[i];

    if (String(arr[i])[0] === String(char1)[0]) {

      if (char2Index >= 0 && (i - char2Index < min)) {
        min = i - char2Index
      }

      char1Index = i
      console.log({char1Index, i})
      continue;
    }

    if (String(arr[i])[0] === String(char2)[0]) {
      if (char1Index >= 0 && (i - char1Index < min)) {
        min = i - char1Index
      }

      char2Index = i
      console.log({char2Index, i})
      continue;
    }
  }
  return min;
};

console.log(
  findMin('b','d',list)
)