Frontend Masters has a lot of good course series. That is probably the easiest, although it's $30/mo. Other than that, there are a few resources on Youtube to l

Frontend Masters has a lot of good course series. That is probably the easiest, although it's $30/mo. Other than that, there are a few resources on Youtube to learn, and also nothing beats experimentation (Codepen, raw html file on your local system). Lastly, this: https://javascript.info/ https://javascript.info/