Virtual insertion

[Denis Hilt]

Currently the Adapter.insert API allows only in-buffer insertions. Need to allow virtual insertions. Proposal is to add beforeIndex and afterIndex options:

export interface AdapterInsertOptions<Data = unknown> {
  items: Data[];
  before?: ItemsPredicate<Data>; // over Buffer only
  after?: ItemsPredicate<Data>; // over Buffer only
  beforeIndex?: number; // over Buffer and virtual
  afterIndex?: number; // over Buffer and virtual
  decrease?: boolean;
}

Only one of the before, after, beforeIndex and afterIndex options is allowed.

[Denis Hilt]

vscroll v1.4.0 is released