1. Dart
2. dart:html
3. TreeWalker
4. previousSibling method

##### TreeWalker class

1. Constructors
2. TreeWalker
3. Properties
4. currentNode
5. filter
6. hashCode
7. root
8. runtimeType
9. whatToShow
10. Methods
11. firstChild
12. lastChild
13. nextNode
14. nextSibling
15. noSuchMethod
16. parentNode
17. previousNode
18. previousSibling
19. toString
20. Operators
21. operator ==

description

# previousSibling method Null safety

Node? previousSibling ()

## Implementation

    Node? previousSibling() native;