I've read over several examples of code using JavaScript generators such as this one.  The simplest generator-using block I can come up with is something like:  function read(path) {     return function (done) {         fs.readFile(path, "f...

I've got this recursive generator    var obj = [1,2,3,[4,5,[6,7,8],9],10]  function *flat(x) {     if (Array.isArray(x))         for (let y of x)             yield *flat(y)     else         yield 'foo' + x;  }  console.log([...flat(obj)])...

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The following implements a control flow wrapper co enabling asynchronous code to be delineated only by the yield keyword.  Is this basically what async/await does under the hood in ESwhatever?    co(function*() {     console.log('...');     y...

I've been very excited about Node JS for awhile. I finally decided to knuckle down and write a test project to learn about generators in the latest Harmony build of Node.  Here is my very simple test project:  https://github.com/kirkouimet/projec...

I'm trying to create a promise-wrapper using generator so that I can do:  var asyncResult = PromiseWrapper( $.ajax( ... ) );   So far, I've been trying with:  function PromiseWrapper(promise){     return function *wrapper(promise){         pr...

When passing parameters to next() of ES6 generators, why is the first value ignored? More concretely, why does the output of this say x = 44 instead of x = 43:  function* foo() {     let i = 0;     var x = 1 + (yield "foo" + (++i));     conso...

If I supply a value to the next method on a generator, in addition to supplying an expression to the right of the yield keyword, how is the return value of the yield resolved?  function* go() {   console.log(yield 'a');   console.log(yield &#...

In Java it is possible to declare and fold infinite streams as so  List<Integer> collect = Stream.iterate(0, i -> i + 2)     .map(i -> i * 3)     .filter(i -> i % 2 == 0)     .limit(10)     .collect(Collectors.toList());  // -> [0,...

I am running the NodeJS console:   $ node --version v0.12.0   And I am trying to implement a Generator function such as this one  function* colorGen() {     var colors = ["red", "green", "blue", "white"]     var i = 0;...