When to pick up framework?

[cydo]

I've been steadily learning JavaScript now for some time with the hopes to learn Phaser and make games in my spare time. While pursuing a career in Web Dev and just wanted to know how deep into JavaScript you should go before you start learning the Phaser framework. I've learned up to Classes and Objects atm. But haven't covered Modules, Promises, Async Await or Requests should I continue on learning these few remaining topics in the CodeCademy intro to JavaScript or would I be able to start learing the Phaser Framework at my current level?

I'm sure there is no real way to answer this since you can technically make a game with very minor programming knowledge but I'd like to make and publish a endless runner or golf style game. I want to just go on and learn a framework but I feel like I just have to learn everything before I move on.