Avoid confusing prototype methods for static methods

Correct: `Array.from()` (it’s a static method)
Incorrect: `Array.join()` (doesn’t exist; it’s a prototype method)

This patch uses the common `#` syntax to denote `.prototype.`.

snippets/overArgs.md

@@ -2,7 +2,7 @@
 
 Creates a function that invokes the provided function with its arguments transformed.
 
-Use `Array.map()` to apply `transforms` to `args` in combination with the spread operator (`...`) to pass the transformed arguments to `fn`.
+Use `Array.prototype.map()` to apply `transforms` to `args` in combination with the spread operator (`...`) to pass the transformed arguments to `fn`.
 
 ```js
 const overArgs = (fn, transforms) => (...args) => fn(...args.map((val, i) => transforms[i](val)));