Built-in Methods in JavaScript

Hello Everyone, As of now I am in my hometown because of coronavirus and I am learning online Javascript to improve our skills. I have doubts to find some more names of built-in methods in JavaScript and I know few names but I want to know more and where I learned some extra topics in Javascript, Can anyone know about it? Or suggest me some more interest topic which is useful to my interview point of view also. I have know some built-in method like constructor(), anchor(), Date.parse(), and fontcolor().