Whats the smartest / cleanest way to iterate async over arrays (or objs)?

Question

Thats how I do it:

function processArray(array, index, callback) {
    processItem(array[index], function(){
        if(++index === array.length) {
                  


        

Answer 1

As correctly pointed out, you have to use setTimeout, for example:

each_async = function(ary, fn) {
    var i = 0;
    -function() {
        fn(ary[i]);
        if (++i < ary.length)
            setTimeout(arguments.callee, 0)
    }()
}


each_async([1,2,3,4], function(p) { console.log(p) })