I'm not sure if this can help you prepare for an interview quickly but most advanced JavaScript things I've learned is by taking a deep dive into existing frame

I'm not sure if this can help you prepare for an interview quickly but most advanced JavaScript things I've learned is by taking a deep dive into existing frameworks like AngularJS, jQuery, etc source code. You see a lot of things happening which may not make sense like "The Great Mystery of the Tilde(~)"[1], etc which are not only fun to figure out but you also see them being used practically too. [1] https://www.joezimjs.com/javascript/great-mystery-of-the-tilde/ https://www.joezimjs.com/javascript/great-mystery-of-the-til...