Is it good to go without any plan for career?

I am a front-end developer. Very much interested in JavaScript and started learning node.js and few nuances in JS. Whenever I find anything interesting I used to write about it. During my free time I used to work on side projects and ship the code to Github. But I don't have any plan.

Here is my website link madhankumar028.github.io.

Kindly share your opinion and any suggestions to improve myself.