AsyncIterator

An asynchronous iterator that uses requestAnimationFrame to batch process large datasets without locking up the UI.

// The dataset
var myArr = [];
// Number of operations per call
var batchSize = 1000;
// The actual processing method
function work(item, index) {
    // Do something for each item
}

// Start iterator, it will return a promise
var promise = asyncIterator(myArr, work, batchSize);

// When promise is resolved, output results
promise.done(
    function(results){
        console.log('Done processing', results);
    }
);