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/takeRight.md

@@ -2,7 +2,7 @@
 
 Returns an array with n elements removed from the end.
 
-Use `Array.slice()` to create a slice of the array with `n` elements taken from the end.
+Use `Array.prototype.slice()` to create a slice of the array with `n` elements taken from the end.
 
 ```js
 const takeRight = (arr, n = 1) => arr.slice(arr.length - n, arr.length);