axel rauschmayer's books are pretty good: https://exploringjs.com/ https://exploringjs.com/ (edit: a more direct link: https://exploringjs.com/impatient-js/toc

axel rauschmayer's books are pretty good: https://exploringjs.com/ https://exploringjs.com/ (edit: a more direct link: https://exploringjs.com/impatient-js/toc.html https://exploringjs.com/impatient-js/toc.html) I remember learning the fairly deep == type-inference algorithm by reading something he wrote, but I don't recall which thing it was in. A lot of the material is suitable as reference, so I haven't sat down and read much like a novel.