docs: update example and remove comments

Author: kgryte

Diff for: lib/node_modules/@stdlib/string/for-each/examples/index.js

@@ -20,20 +20,11 @@
 
 var forEach = require( './../lib' );
 
-/* eslint-disable no-unused-vars */
-function log( value, index, str ) {
-	var repeatStr = value + value;
-	console.log( '%s: %d', index, repeatStr );
+function log( value, index ) {
+	console.log( '%d: %s', index, value );
 }
 
-// Iterates over each visual character:
 forEach( 'presidential election', log );
-
-// Iterates over each visual character:
 forEach( 'Iñtërnâtiônàlizætiøn', log );
-
-// Iterates over each visual character:
 forEach( '🌷🍕', log );
-
-// Iterates over each visual character:
 forEach( '\uD834\uDD1E', log );