> without knowing JS What "knowing JS" even entails here? Reading through ECMAScript's Specification (of over 800 pages long) at least once? Having to deal wit

> without knowing JS What "knowing JS" even entails here? Reading through ECMAScript's Specification (of over 800 pages long) at least once? Having to deal with browsers since 1998? Knowing your way around numerous "standard libraries"? Understanding perplexing landscape of perpetual changes in JS/TS? Most full-stack developers (arguably) are not Javascript experts, yet they do sometimes need to write small front-ends or deal with nodejs.