staltz

The introduction to Reactive Programming you've been missing

(by @andrestaltz)

---

This tutorial as a series of videos

If you prefer to watch video tutorials with live-coding, then check out this series I recorded with the same contents as in this article: Egghead.io - Introduction to Reactive Programming.

---

Sennahoi

var cheerio = require("cheerio"),
    fs = require("fs");
 
fs.readFile('bookmarks.html', "utf-8", function read(err, data) {
    if (err) {
        throw err;
    }
 
    var $ = cheerio.load(data);
    $("a").each(function(index, a) {

nielsutrecht

import javax.crypto.Cipher;
import java.io.InputStream;
import java.security.*;
import java.util.Base64;

import static java.nio.charset.StandardCharsets.UTF_8;

public class RsaExample {
    public static KeyPair generateKeyPair() throws Exception {
        KeyPairGenerator generator = KeyPairGenerator.getInstance("RSA");

zcaceres

Nested Routers in Express.js

Express makes it easy to nest routes in your routers. But I always had trouble accessing the request object's .params when you had a long URI with multiple parameters and nested routes.

Let's say you're building routes for a website www.music.com. Music is organized into albums with multiple tracks. Users can click to see a track list. Then they can select a single track and see a sub-page about that specific track.

At our application level, we could first have a Router to handle any requests to our albums.

const express = require('express');