the question is: does it matter if a given expression fails? if so, get the error and evaluate it -- like if json.Marshal fails in your http.Handler if not, (

the question is: does it matter if a given expression fails? if so, get the error and evaluate it -- like if json.Marshal fails in your http.Handler if not, (shrug) -- like (maybe) if your fmt.Printf fails panics are for core assertion violations, not an ersatz error reporting mechanism