gather

Control flow utility that runs a callback after all the dependencies are (asynchronously) met. Useful when a function depends on some resources that are obtained asynchronously and independently.

Example

var done = gather(function (a, b) {
  console.log(a + b);
});

async(function () {
  async(function () {
    done('foo', undefined);
  });
});

async(function () {
  done(undefined, 'bar');
});

// Prints "foobar".

API

feed = gather(done)

Returns a function that can feed results to done.

Pass arguments as they become ready, interleaving with undefined for not-yet-resolved ones. The order and total count matter.

Once all the arguments are supplied, done is finally called.

Install

npm install gather

License

MIT