listOrNull<T> function

  1. @Deprecated('Use BuildOp.onRenderBlock instead.')
Iterable<T>? listOrNull<T>(
  1. T? x
)

Returns List<T> if x is provided or null otherwise.

Implementation

@Deprecated('Use BuildOp.onRenderBlock instead.')
Iterable<T>? listOrNull<T>(T? x) => x == null ? null : [x];