How useful is JavaScript?

Related questions

1. Is Java required for JavaScript?
2. What should I learn Java or JavaScript?
3. Does Firefox support JavaScript?
4. Is my JavaScript enabled?
5. What is difference between Java and JavaScript?
6. Is JavaScript a real programming language?
7. Is JavaScript free to use?
8. Should JavaScript be enabled?
9. Is Java better than JavaScript?
10. What should I learn Python or JavaScript?

Tags

1. #implement
2. #desktop
3. #allows
4. #mobile
5. #development
6. #essential
7. #interactive
8. #javascript
9. #become
10. #websites
11. #browsers
12. #furthermore
13. #confused
14. #along
15. #usage
16. #build
17. #technology
18. #extended