# indexOf method

int indexOf(

1. int value, [
2. int start = 0

])

Returns the index of the first occurrence of the specified byte.

`value` the byte to search for `start` the starting index (optional) Returns -1 if not found

## Implementation

    int indexOf(int value, [int start = 0]) {
      for (int i = start; i < _bytes.length; i++) {
        if (_bytes[i] == value) return i;
      }
      return -1;
    }