types-grammar, ch4: chapter summary

Author: getify

types-grammar/ch4.md

@@ -1845,7 +1845,11 @@ I will leave you to ponder this: do you really think it's a good idea to write c
 
 ## What's Left?
 
-// TODO
+I hope by now you're feeling a lot more informed about how JS's type system works, from primitive value types to the object types, to how type coercions are performed by the engine.
+
+More importantly, you also now have a much more complete picture of the pros/cons of the choices we make using JS's type system, such as choosing *implicit* or *explicit* coercions at different points.
+
+But we haven't fully covered the context in which the type system operates. For the remainder of this book, we'll turn our attention to the syntax/grammar rules of JS that govern how operators and statements behave.
 
 [^EichCoercion]: "The State of JavaScript - Brendan Eich", comment thread, Hacker News; Oct 9 2012; https://news.ycombinator.com/item?id=4632704 ; Accessed August 2022