I Wanted to keep the items in serially, as im trying to break the stack.
Your asyncForEach is at the end of the day synchronous loop just like any
other forloop.
On Wednesday, April 11, 2012 3:33:18 PM UTC-4, Tim Caswell wrote:
>
> That depends on what you want it to do. This seems to execute each item
> serially. You can do them all parallel and abort on the first error like
> this:
>
> function asyncForEach(array, worker, callback) {
> var len = array.length;
> var results = new Array(l);
> if (!len) return callback(null, results);
> var left = len;
> for (var i = 0; i < len; i++) {
> start(i);
> }
> function start(i) {
> worker(array[i], i, array, function (err, result) {
> if (err) return callback(err);
> results[i] = result;
> if (!--left) callback(null, results);
> });
> }
> }
>
>
> On Wed, Apr 11, 2012 at 2:07 PM, Tim Price <price.ti...@gmail.com> wrote:
>
>> How would one better write this function?
>>
>> Array.prototype.forLoop = function(worker, callBack) {
>> var self = this;
>> var returnData = [];
>> var loop = function(i) {
>> if(i === self.length) {
>> return callBack(returnData);
>> }
>> process.nextTick(function() {
>>
>> worker.call(self, self[i], function(d) {
>>
>> returnData.push(d);
>> loop(++i);
>> });
>> });
>> }
>> loop(0);
>> };
>>
>>
>> and you would use it like so
>>
>>
>> ['sdf', 'sdfsdf'].forLoop(function(item, done) {
>> console.log(item, done)
>> done(item)
>> }, function(result) {
>> console.log(result)
>> })
>>
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>
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