description

# scrollBy method Null safety

void scrollBy (

1. [dynamic options_OR_x,
2. dynamic y,
3. Map? scrollOptions]

)

Scrolls the page horizontally and vertically by an offset.

## Other resources

- Window.scrollBy from MDN.

## Implementation

    void scrollBy([options_OR_x, y, Map? scrollOptions]) {
      if (options_OR_x == null && y == null && scrollOptions == null) {
        _scrollBy_1();
        return;
      }
      if ((options_OR_x is Map) && y == null && scrollOptions == null) {
        var options_1 = convertDartToNative_Dictionary(options_OR_x);
        _scrollBy_2(options_1);
        return;
      }
      if ((y is num) && (options_OR_x is num) && scrollOptions == null) {
        _scrollBy_3(options_OR_x, y);
        return;
      }
      if ((y is int) && (options_OR_x is int) && scrollOptions == null) {
        _scrollBy_4(options_OR_x, y);
        return;
      }
      if (scrollOptions != null && (y is int) && (options_OR_x is int)) {
        var scrollOptions_1 = convertDartToNative_Dictionary(scrollOptions);
        _scrollBy_5(options_OR_x, y, scrollOptions_1);
        return;
      }
      throw new ArgumentError("Incorrect number or type of arguments");
    }