Is JavaScript sync or async?

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Tags

1. #synchronously
2. #successfully
3. #asynchronous
4. #returns
5. #synchronous
6. #example
7. #always
8. #threaded
9. #single
10. #point
11. #execute
12. #which
13. #other
14. #otherwise
15. #executing
16. #until
17. #javascript
18. #callback
19. #calls
20. #sense