1. abstractrange api: collapsed

2. console api: `groupcollapsed()` static method

3. range api: collapse

4. range api: collapsed

5. range api: collapse: `tostart` parameter is optional

6. selection api: collapse

7. selection api: collapsetoend

8. selection api: collapsetostart

9. selection api: collapse: accepts `node` parameter in any tree/shadow tree

10. selection api: collapse: `node` parameter is nullable

11. selection api: collapse: `offset` parameter is optional

12. selection api: iscollapsed

13. selection api: `setposition()` as alias of `collapse()`

14. staticrange api: collapsed

15. css property: border-collapse

16. css property: border-collapse: collapse

17. css property: border-collapse: separate

18. css property: visibility: collapse

19. css property: white-space-collapse

20. css property: white-space-collapse: break-spaces

21. css property: white-space-collapse: collapse

22. css property: white-space-collapse: preserve

23. css property: white-space-collapse: preserve-breaks

24. css property: white-space-collapse: preserve-spaces

25. css property: white-space: collapse

26. css text-space-collapse property

27. microdata api