ES6 Generators 1 Source Code used in a blog post.

first_test.js

function *first_test()
{
	yield "Hello!";
	yield "I am a generator!";
	yield "This is the last thing I will yield.";
}

var test = first_test(),
	next = test.next();

do {
	console.log(next.value);
	next = test.next();
} while(!next.done);

console.log("****");

for(var result of first_test())
{
	console.log(result);
}

generators.js

/* Source code used in the production of the first ES6 generators post on my blog.
 * Written by Starbeamrainbowlabs
 * Website: https://starbeamrainbowlabs.com/
 * Blog: https://starbeamrainbowlabs.com/blog/
 * Twitter: @SBRLabs
 * Reddit: /u/Starbeamrainbowlabs
 */

function *get_id(start)
{
	var current = start;
	while(true)
	{
		yield start.toString(16);
		
		start++;
	}
}

var readline = require("readline"),
	interface = readline.createInterface({
		input: process.stdin,
		output: process.stdout,	
	}),
	
	id_generator = get_id(404);

interface.setPrompt("> ");

interface.on("line", function(line) {
	var words = line.split(/\s+/gi);
	
	interface.write(`next id: ${id_generator.next().value}`);
});

return.js

"use strict";

function *counter(base)
{
	var number = base;
	while(true)
	{
		number += yield number;
	}
}


var generator = counter(100);

for(var i = 0; i < 10; i++)
{
	let next = generator.next(Math.floor(Math.random() * 10))
	console.log(next.value);
}