JavaScript Iterators: Strings, spread, and for of

iterator-string-for-of-spread.js

/* JavaScript Iterators
Strings as data source; for of and spread operator as data consumers

Strings can be consumed as iterables using the spread operator.
Note that strings will be parsed according to code points, not by character, 
and so num characters parsed will be somewhat nondeterministic.

Sources: 
1 - Axel Rauschmeyer: http://exploringjs.com/es6/ch_iteration.html
2 - http://www.zsoltnagy.eu/es6-iterators-and-generators-in-practice/
*/

let album = [...'OK Computer'];
 
let letterz = album.entries();
 
for( let letter of letterz ) {
    console.log( letter );
}

/* output: 

[0,"O"]
[1,"K"]
[2," "]
[3,"C"]
[4,"o"]
[5,"m"]
[6,"p"]
[7,"u"]
[8,"t"]
[9,"e"]
[10,"r"]
*/