//public IReadOnlyDictionary<string, WordTreeNode> GetChildrens() => _children;
//public WordTreeNode GetChild(Word word)
//{
// return this._children[word.Value];
//}
public WordTreeNode AddChildren(WordTreeNode node)
{
ReplaceParent(node)
.AddChildren(node.Item.Value, node);
//._children.Add(item.GetHashCode(), item);
return(this);
}
private WordTreeNode ReplaceParent(WordTreeNode node)
{
if (node.Parent != null)
{
node.Parent.RemoveChildren(node.Item.Value);
}
node.Parent = this;
return(this);
}