JavaScript is an absolute necessity for web developers nowadays as per some an industry survey, some 94% of websites use JavaScript to make their websites more responsive, interactive and user-friendly. You could guess how necessary it is to get skillful in JavaScript and its libraries. On this note, I would recommend you to take web development courses from Intellipaat which will help you master the web development with the help of guided projects to help you acquire hands-on experience.
These courses are available as online instructor-led training course as well as self-paced e-videos that comes with Lifetime 24*7 technical support and you could clear doubts from our instructors at your will.
Do check out our YouTube video on JavaScript Developer Roadmap to gain a better understanding.