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Node News Wednesday, January 31

Node News TLDR / Table of Contents

  • Modern JavaScript Explained For Dinosaurs – Node.js Collection – Medium
    • Learning modern JavaScript is tough if you haven’t been there since the beginning. The ecosystem is growing and changing so rapidly that it’s hard to understand the problems that different tools are…
    • JavaScript, command line, file, script src=, package manager
  • SQL Server CRUD Actions Using Node.js
    • In this post, we will see how we can perform CRUD operations in our SQL database, using Node JS.
    • Node JS, node js application, Node JS tool, Node JS Applications, Node JS code
  • Understanding the Dynamics of Node.Js Cluster
    • Understanding the Dynamics of Node.Js Cluster, post has detailed information on Node.Js cluster module and how to used it in a multi-process architecture.
    • cluster module, master process, node.js cluster, var cluster, Node.Js cluster module
  • Node.js By Example: Part 4 – codeburst
    • We wrap up this series by replacing our in-memory persistence with persistence to disk in a database. All the examples in this series are available for download. They are Node.js(version ≥ 8.9.3)…
    • database, psql postgres, eslint-disable no-console */, new Date, sequelize
  • A Beginner Splurge in Node.js — SitePoint
    • Camillo Reyes and Michiel Mulders demonstrate some experiments with Node.js and the command line, using callbacks, I/O operations and a web server.
    • Node.js, callbacks, callback, command line, asynchronous callbacks
  • How to Use SSL/TLS with Node.js — SitePoint
    • Almir and Florian show how to implement SSL/TLS in Node.js applications, either for accessing HTTPS resources or for providing resources with encryption.
    • HTTPS, certificate, partial HTTPS support, key exchange, HTTPS handshake
  • HTTP/2 Server Push with Node.js
    • In this blog post, we will introduce the most important aspects of HTTP/2 Server Push and create a small Node.js app that gains benefit from using it.
    • server push, assets, HTTP header fields, small Node.js app, initial HTML file
  • Node.js as Backend: Best Use Cases, Tools & Limitations – Snipcart
    • JavaScript & Node.js for backend development, who said you shouldn’t? A lot of things (good & bad) have been said about Node.js, here’s our input! Learn about advantages, disadvantages & tools for backend developers.
    • Node.js, backend language, javascript, popular javascript backend, Node
  • Vídeo: Recarga automática del Servidor de Node.js con HotNode – Aprende a Programar – Codejobs
    • Hola chicos cómo saben hace unos días hice una publicación sobre HotNode, ahora les traigo el vídeo, espero les guste, saludos.   [Ad:Sky] ¿Te gustaría ser nuestro Patreon?
    • única forma,
  • Prettier: An Opinionated Code Formatter, Excellent for Open Source
    • As part of my work with Outreachy on Jaeger, an open source distributed tracing system, we’ve recently added Prettier to the Node.js client library. 🎉 Prettier is an opinionated code formatter. In…
    • Prettier, open source, stylistically idiosyncratic code, Prettier guarantees consistency, code formatter
  • Curso: React Profesional – Implementando una API con Node.js #6 – Aprende a Programar – Codejobs
    • ¿Te gustaría ser nuestro Patreon y tener acceso a contenidos exclusivos? https://www.patreon.com/codejobs En este vídeo aprenderás a realizar una implementación de una API en Node.js Si eres nuevo en React
    • única forma,
  • Top 15 Effective Node.Js Tools Web Developers Shouldn’t Miss
    • Node.js has evolved as one of the most popular javascript platforms to develop networking and real-time web applications. one of the many reasons why node.js is popular among the developers is that it has many tools and frameworks available for developing a scalable and lightweight application. image source: big stockin…
    • image source, node.js, node.js application, node.js application development, web applications
  • Node.js & Pusher Real Time Polling App [1] – Initial Back End
    • Part 1 of 3: In this video we will setup our backend for our real-time polling application using Node.js and Express. We will also enable CORS and create our…
    • upload original content, YouTube, videos, music, friends

Score: 519000
URL: https://medium.com/the-node-js-collection/modern-javascript-explained-for-dinosaurs-f695e9747b70
Tweeted At: Mon Jan 29 13:24:02 +0000 2018
Publish Date: 2017-10-18T17:25:08.708000+00:00
Author: Peter Jang

  • With the defaults the contents of package.json should look something like:{ “name”: “your-project-name”, “version”: “1.0.0”, “description”: “”, “main”: “index.js”, “scripts”: { “test”: “echo \”Error: no test specified\” exit 1″ }, “author”: “”, “license”: “ISC”}To install the moment.js JavaScript package, we can now follow the npm instructions from their home page…
  • { “name”: “modern-javascript-example”, “version”: “1.0.0”, “description”: “”, “main”: “index.js”, “scripts”: { “test”: “echo \”Error: no test specified\” exit 1″ }, “author”: “”, “license”: “ISC”, “dependencies”: { “moment”: “^2.19.1” }}This is useful later when sharing a project with others — instead of sharing the node_modules folder (which can get very large), you only…
  • So for the longest time, organizing JavaScript code in multiple files required you to load each file with variables shared globally.This is actually what we’re doing with the above moment.js example — the entire moment.min.js file is loaded in the HTML, which defines a global variable moment, which is then available to…
  • Instead of loading all of moment.min.js with an HTML script tag, you can load it directly in the JavaScript file as follows:// index.jsvar moment = from this is how module loading works in node.js, which works great since node.js is a server side language with access to the computer’s file…
  • A JavaScript module bundler is a tool that gets around the problem with a build step (which has access to the file system) to create a final output that is browser compatible (which doesn’t need access to the file system).

Tags: JavaScript, command line, file, script src=, package manager

Score: 153000
URL: http://www.c-sharpcorner.com/article/sql-server-crud-actions-using-node-js/
Tweeted At: Mon Jan 29 08:00:01 +0000 2018
Publish Date:
Author: Sibeesh Venu

  • Creating Node JS Application In Visual Studio – – – – You can find an option as Node JS in your “Add New Project” window, as shown below.
  • Select all the data from database using Node JS – – – – Now, run your application and see the output.
  • Insert data to database using Node JS – – – – We can always perform some insert query too using Node JS, the difference will be – as we have Transactions in SQL , we will include that too here.
  • Delete data from database using Node JS – – – – As we performed insert operation, we can do the same for delete operation as well.
  • Update data from database using Node JS – – – – The only action pending here to perform is UPDATE.

Tags: Node JS, node js application, Node JS tool, Node JS Applications, Node JS code

Score: 40000
URL: http://creativealive.com/understanding-dynamics-node-js-cluster/
Tweeted At: Tue Jan 30 22:20:01 +0000 2018
Publish Date: 2015-01-16T06:53:12+00:00
Author: Creative Alive

  • The cluster module allows you to create a small network of some individual processes which can conveniently share server ports; this will in return gives a complete level of control and power to your server.
  • So, to get started with the cluster module, we need to first encounter the master process.
  • As the name suggests, the master process is the main controller of all the processes which can launch new programs called workers with a call to cluster.fork (), or many other related “workers” which are expected to perform common functions.
  • Here’s how we can do that: – – in the above process, as and when an exit event become alive, the master process will launch new child programs, to ensure an equal availability of the entire processes.
  • To master the Node.Js app, it is important for us to first learn the art of determining the number of child processes we wish to create and everything that matters.

Tags: cluster module, master process, node.js cluster, var cluster, Node.Js cluster module

Score: 15000
URL: https://codeburst.io/node-js-by-example-part-4-e84901514cfd?gi=f6682c5941d9
Tweeted At: Tue Jan 30 21:52:43 +0000 2018
Publish Date: 2018-01-26T15:07:04.053000+00:00
Author: John Tucker

  • note: Sequelize does support a number of other database engines; I am just most familiar with PostreSQL.Created a PostgreSQL database for this project.sudo -u postgres createdb mydbnote: My development OS is Ubuntu; so you will likely have to do some translation to your OS.Created a new PostgreSQL user for this…
  • Next we update the configuration file (for now just the development “development”: { “username”: “myuser”, “password”: “OBMITTED”, “database”: “mydb”, “host”: “127.0.0.1”, “dialect”: “postgres” }, “test”: { “username”: “root”, “password”: null, “database”: “database_test”, “host”: “127.0.0.1”, “dialect”: “mysql” }, “production”: { “username”: “root”, “password”: null, “database”: “database_production”, “host”: “127.0.0.1”, “dialect”: “mysql” }}Next…
  • Now with the tables in place, we need to seed them with sample seed:generate –name demo-todoWe then need to edit the generated seed file with our strict’;module.exports = { up: (queryInterface, Sequelize) = { return [{ note: ‘Hello Todos’, createdAt: new Date(), updatedAt: new Date() }, { note: ‘Another Todo’,…
  • Not the case, you have to provide the values yourself.With this in place, we can seed our db:seed:allForever being the pessimist, I double-checked the database to see that it did what I expected:psql * from “Todos”;With expected result of:id | note | createdAt | updatedAt 1 | Hello Todos |…
  • The auto-generated model file exports a factory function that creates todo models; not the model itself.Sequelize Web ApplicationIf you have been following along, we wrote the earlier web applications using in-memory persistence; at the same time we created the in-memory structures using the same patterns as Sequelize.

Tags: database, psql postgres, eslint-disable no-console */, new Date, sequelize

Score: 11000
URL: https://www.sitepoint.com/a-beginner-splurge-in-node-js/
Tweeted At: Tue Jan 30 21:54:11 +0000 2018
Publish Date: 2018-01-30T00:10:34+00:00
Author:

  • Callbacks – To start, type up this function: – function add(a, b, callback) { var result = a + b; callback(result); } – – To a newbie, a callback in JavaScript may seem strange.
  • Let’s go on with something cooler — like a simple DNS lookup in Node.js: – dns.lookup(‘bing.com’, function (err, address, family) { console.log(‘ Address: ‘ + address + ‘, Family: ‘ + family + ‘, Err: ‘ + err); }); – – The callback returns err, address, and family objects.
  • Here’s the answer: – fs.readFile(‘message.txt’, function(err, data) { console.log(data); }); – – You may also pass in an encoding option to get the utf-8 contents of the file: – fs.readFile(‘message.txt’, {encoding: ‘utf-8’}, function(err, data) { console.log(data); }); – – The use of callback functions with async I/O looks nice in…
  • Here’s the answer: – var http = require(‘http’); – var server = http.createServer(function (request, response) { response.end(‘Hello Node.js’); }); – – The Web is based on a client-server model of requests and responses.
  • We can also loop through the headers object: – server.close(); – server = http.createServer(function (request, response) { (key) { response.write(key + ‘: ‘ + request.headers[key] + ‘ ‘); }); response.end(); }); server.listen(8082); – – Point the browser to localhost:8082 this time.

Tags: Node.js, callbacks, callback, command line, asynchronous callbacks

Score: 11000
URL: https://www.sitepoint.com/how-to-use-ssltls-with-node-js/
Tweeted At: Wed Jan 31 05:10:01 +0000 2018
Publish Date: 2018-01-25T23:45:19+00:00
Author:

  • Previously, we had to generate a private/public key pair, send it to a trusted authority, pay them and probably wait a bit in order to get an SSL certificate.
  • In order to install Certbot, run – brew install certbot – – Webroot – Webroot is a Certbot plugin that, in addition to the Certbot default functionallity which automatically generates your public/private key pair and generates an SSL certificate for those, also copies the certificates to your webroot folder and…
  • Last but not least, after running this command, the output will contain paths to your private key and certificate files.
  • // … – – const options = { – key: cert: // these paths might differ for you, make sure to copy from the certbot output – }; – – // … – – Tighetning It Up – HSTS – Have you ever had a website where you switched from…
  • Install Helmet by running – npm install –save helmet – – Then we just have to add it as a middleware to our Express server: – const https = require(“https”), – fs = require(“fs”), – helmet = require(“helmet”); – – const options = { – key: cert: app = express();…

Tags: HTTPS, certificate, partial HTTPS support, key exchange, HTTPS handshake

Score: 10000
URL: https://blog.risingstack.com/node-js-http-2-push/
Tweeted At: Tue Jan 30 22:03:00 +0000 2018
Publish Date: 2017-08-21T10:01:26+00:00
Author: Péter Márton

  • The primary goals for HTTP/2 are to reduce latency by enabling full request and response multiplexing, minimize protocol overhead via efficient compression of HTTP header fields, and add support for request prioritization and server push.
  • HTTP/2 Server Push allows the server to send assets to the browser before it has even asked for them.
  • In HTTP/1 the client sends a request to the server, which replies with the requested content, usually with an HTML file that contains links to many assets (.
  • You can see that HTTP/2 multiplexing reduced the number of requests, and the assets were sent immediately together with the initial request.
  • You can find the full example here: Server Push, we can send assets to the browser before it has even asked for them to reduce the initial loading time for our users.

Tags: server push, assets, HTTP header fields, small Node.js app, initial HTML file

Score: 10000
URL: https://snipcart.com/blog/javascript-nodejs-backend-development
Tweeted At: Tue Jan 30 13:50:10 +0000 2018
Publish Date:
Author: Content &

  • “Callback hell is real – – Debugging is a bitch – – JavaScript was not made for server-side – – […]” – – And some are more… straightforward: – – For this post, I thought it was time to set the record straight about Node.js and JavaScript as a backend…
  • How can we explain the rapid shift from the original backlash to the mainstream acceptance for Node.js and JavaScript as a backend language?
  • Node.js not only revolutionized backend web development but also contributed to bringing performance to the frontend by bringing serious engineering to the client-side.
  • Let’s say you need to do video encoding, you won’t go searching for an esoteric Node.js library: you’ll simply call proven tools in the command line from Node.
  • I guess the aim here is to paint a grey area between the black & white opinions I’ve been reading on Node.js and JavaScript as a backend language.

Tags: Node.js, backend language, javascript, popular javascript backend, Node

Score: 2300
URL: https://www.codejobs.biz/es/blog/2014/09/09/video-recarga-automatica-del-servidor-de-nodejs-con-hotnode
Tweeted At: Wed Jan 31 02:40:05 +0000 2018
Publish Date:
Author: Carlos Santana

    Tags: única forma,

    Score: 2050
    URL: https://medium.com/@karadelamarck/prettier-an-opinionated-code-formatter-excellent-for-open-source-5ecd2685238f
    Tweeted At: Tue Jan 30 14:10:09 +0000 2018
    Publish Date: 2018-01-30T13:53:55.702000+00:00
    Author: Kara de la Marck

    • In practice, this means that Prettier leverages what computers are good at — parsing and analysing code — to enable smoother, easier collaboration in software development.šThis is fantastic for many teams and projects, but especially for open source, where contributors are usually dispersed, often strangers, and sometimes new to the project.
    • At the same time, Prettier makes code formatting consistent across an entire codebase, increasing legibility.Prettier makes formatting computers’ work.More about PrettierPrettier is an opinionated code formatter that supports JavaScript (including ES2017), JSX, Flow, TypeScript, JSON, CSS, Less, SCSS, styled-components, Markdown, and GraphQL.Prettier guarantees consistency in formatting by parsing your code into…
    • Your teammates won’t be annoyed, because Prettier will prettify your code before they ever see it.There is a huge amount of formatting decisions you’ll never need to think about again — that’s true for the individual developer and for the team.
    • Each individual on your team, or contributor to your open source project, can write their own stylistically idiosyncratic code and Prettier will pretty-print it before anyone else has to read it.
    • Or code review it.You can ensure that PRs are prettified before they are reviewed, thus removing the need for nits regarding styling or formatting.Prettier is a fantastic productivity win for developers, teams, and especially open source projects, where contributors are usually dispersed, often strangers, and sometimes new to the project….

    Tags: Prettier, open source, stylistically idiosyncratic code, Prettier guarantees consistency, code formatter

    Score: 1900
    URL: https://www.codejobs.biz/es/blog/2017/09/07/curso-react-profesional-implementando-una-api-con-nodejs-6
    Tweeted At: Tue Jan 30 18:50:03 +0000 2018
    Publish Date:
    Author: Carlos Santana

      Tags: única forma,

      Score: 222
      URL: http://findnerd.com/list/view/Top-15-Effective-Node-Js-Tools-Web-Developers-Shouldn-t-Miss/33795/1
      Tweeted At: Mon Jan 29 00:43:05 +0000 2018
      Publish Date: 2017-06-10T12:52:32+00:00
      Author:

        Tags: image source, node.js, node.js application, node.js application development, web applications

        Score: 192
        URL: https://www.youtube.com/watch?a&feature=youtu.be&v=SSDED3XKz-0
        Tweeted At: Mon Jan 29 18:39:08 +0000 2018
        Publish Date:
        Author:

          Tags: upload original content, YouTube, videos, music, friends

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