Async problem in async.each

Doppy

Suppose we are in a async.waterfall that It was build before. The problem when I print the array at the end of async.each cicle the array is not order like the array passed like parameter (setUsername).Anyone can help me?

setUsername: is a list of uid
set: is hash
start:0
end:-1

var array=[];

function(setUsername,next){
	async.each(setUsername, function(uid, call) {
		db.getSortedSetRange(set + uid, start,end, function(err, test) {
			if (err) {
				call(err);
			}
			array.push({
				'uid': uid,
				'test': test
			});
			console.log('UID PUT IN ARRAY '+uid);
			call();
		});
	}, function close(err) {
		if (err) {
			next(err);
		}
		next(null, array);
	});
}

yariplus

You need to use async.map, which creates the new array based on the old one.


function(setUsername,next){
	async.map(setUsername, function(uid, call) {
		db.getSortedSetRange(set + uid, start,end, function(err, test) {
			// You need to ignore errors here, and just mark test as null.
			if (!test) test = null;
			// The callback will push to the new array.
			call(null, {
				'uid': uid,
				'test': test
			});
		});
	}, function (err, array) {
		if (err) {
			next(err);
		}
		// Filter out empty values.
		array = array.filter(function(el){ return el.test; });
		next(null, array);
	});
}