Loop EventEmit

multiple asynchronous event for eventemit

Installation

npm install loop-events

Usage

multiple asynchronous event complete :

var LoopEvent = require("loop-events"),
https = require("https");

var urlEvent = new LoopEvent();
var urls = ["https://github.com/", "https://github.com/", "https://github.com/"];

urlEvent.setChildCount(urls.length);
urlEvent.on("allDone", function () {
console.log("allDone");
});
urls.forEach(function (url) {
https.request(url, function () {
urlEvent.emit("childDone");
}).end();
});


more complex (recursion folder complete event):

var LoopEvent = require("loop-events"),
fs = require("fs"),
path = require("path");

var root = path.resolve(__dirname, "..");
var event = new LoopEvent();
function loopdir(folder, parent) {
fs.readdir(folder, function (err, files) {
if (files.length == 0) {
parent.emit("childAllDone")
return;
}
parent.setChildCount(files.length);
files.forEach(function (file) {
var curLoopEvents = new LoopEvent(parent);
var absPath = path.join(folder, file);
fs.stat(absPath, function (err, stas) {
if (stas.isDirectory()) {
loopdir(absPath, curLoopEvents);
} else {
curLoopEvents.emit("childAllDone", absPath);
}
})
})
})
}

event.on("allDone", function () {
console.log("allDone");
});
loopdir(root, event);