How important is it to learn JavaScript?

Related questions

1. Can I learn JavaScript in a week?
2. Is learning to code hard?
3. Can anyone learn coding?
4. Is learning JavaScript easy?
5. Does Mozilla own JavaScript?
6. Can you learn JavaScript in a week?
7. Which is better Python or JavaScript?
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10. Should I learn JavaScript or Python first?

Tags

1. #language
2. #pages
3. #determined
4. #currently
5. #interactive
6. #helps
7. #importance
8. #javascript
9. #websites
10. #custom
11. #programming
12. #scripts
13. #dynamic
14. #technology
15. #implementing
16. #developers
17. #client