Neither does there exist isPrototype...

Author: infinnie

es6 & beyond/ch7.md

@@ -3,7 +3,7 @@
 
 Meta programming is programming where the operation targets the behavior of the program itself. In other words, it's programming the programming of your program. Yeah, a mouthful, huh?
 
-For example, if you probe the relationship between one object `a` and another `b` -- are they `[[Prototype]]` linked? -- using `a.isPrototype(b)`, this is commonly referred to as introspection, a form of meta programming. Macros (which don't exist in JS, yet) --  where the code modifies itself at compile time -- are another obvious example of meta programming. Enumerating the keys of an object with a `for..in` loop, or checking if an object is an *instance of* a "class constructor", are other common meta programming tasks.
+For example, if you probe the relationship between one object `a` and another `b` -- are they `[[Prototype]]` linked? -- using `a.isPrototypeOf(b)`, this is commonly referred to as introspection, a form of meta programming. Macros (which don't exist in JS, yet) --  where the code modifies itself at compile time -- are another obvious example of meta programming. Enumerating the keys of an object with a `for..in` loop, or checking if an object is an *instance of* a "class constructor", are other common meta programming tasks.
 
 Meta programming focuses on one or more of the following: code inspecting itself, code modifying itself, or code modifying default language behavior so other code is affected.