Callum Slater

Callum Slater

1596677136

Build a Zoom Clone with Node JS for Beginners

In this FREE LIVE training, Naz & Youssef will show you how to build a Zoom Clone with NodeJS 🚀.

Zoom Clone Code GitHub Link 👇

https://github.com/CleverProgrammers/…

Subscribe: https://www.youtube.com/c/CleverProgrammer/featured

#node #javascript #developer

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Buddha Community

Build a Zoom Clone with Node JS for Beginners

NBB: Ad-hoc CLJS Scripting on Node.js

Nbb

Not babashka. Node.js babashka!?

Ad-hoc CLJS scripting on Node.js.

Status

Experimental. Please report issues here.

Goals and features

Nbb's main goal is to make it easy to get started with ad hoc CLJS scripting on Node.js.

Additional goals and features are:

  • Fast startup without relying on a custom version of Node.js.
  • Small artifact (current size is around 1.2MB).
  • First class macros.
  • Support building small TUI apps using Reagent.
  • Complement babashka with libraries from the Node.js ecosystem.

Requirements

Nbb requires Node.js v12 or newer.

How does this tool work?

CLJS code is evaluated through SCI, the same interpreter that powers babashka. Because SCI works with advanced compilation, the bundle size, especially when combined with other dependencies, is smaller than what you get with self-hosted CLJS. That makes startup faster. The trade-off is that execution is less performant and that only a subset of CLJS is available (e.g. no deftype, yet).

Usage

Install nbb from NPM:

$ npm install nbb -g

Omit -g for a local install.

Try out an expression:

$ nbb -e '(+ 1 2 3)'
6

And then install some other NPM libraries to use in the script. E.g.:

$ npm install csv-parse shelljs zx

Create a script which uses the NPM libraries:

(ns script
  (:require ["csv-parse/lib/sync$default" :as csv-parse]
            ["fs" :as fs]
            ["path" :as path]
            ["shelljs$default" :as sh]
            ["term-size$default" :as term-size]
            ["zx$default" :as zx]
            ["zx$fs" :as zxfs]
            [nbb.core :refer [*file*]]))

(prn (path/resolve "."))

(prn (term-size))

(println (count (str (fs/readFileSync *file*))))

(prn (sh/ls "."))

(prn (csv-parse "foo,bar"))

(prn (zxfs/existsSync *file*))

(zx/$ #js ["ls"])

Call the script:

$ nbb script.cljs
"/private/tmp/test-script"
#js {:columns 216, :rows 47}
510
#js ["node_modules" "package-lock.json" "package.json" "script.cljs"]
#js [#js ["foo" "bar"]]
true
$ ls
node_modules
package-lock.json
package.json
script.cljs

Macros

Nbb has first class support for macros: you can define them right inside your .cljs file, like you are used to from JVM Clojure. Consider the plet macro to make working with promises more palatable:

(defmacro plet
  [bindings & body]
  (let [binding-pairs (reverse (partition 2 bindings))
        body (cons 'do body)]
    (reduce (fn [body [sym expr]]
              (let [expr (list '.resolve 'js/Promise expr)]
                (list '.then expr (list 'clojure.core/fn (vector sym)
                                        body))))
            body
            binding-pairs)))

Using this macro we can look async code more like sync code. Consider this puppeteer example:

(-> (.launch puppeteer)
      (.then (fn [browser]
               (-> (.newPage browser)
                   (.then (fn [page]
                            (-> (.goto page "https://clojure.org")
                                (.then #(.screenshot page #js{:path "screenshot.png"}))
                                (.catch #(js/console.log %))
                                (.then #(.close browser)))))))))

Using plet this becomes:

(plet [browser (.launch puppeteer)
       page (.newPage browser)
       _ (.goto page "https://clojure.org")
       _ (-> (.screenshot page #js{:path "screenshot.png"})
             (.catch #(js/console.log %)))]
      (.close browser))

See the puppeteer example for the full code.

Since v0.0.36, nbb includes promesa which is a library to deal with promises. The above plet macro is similar to promesa.core/let.

Startup time

$ time nbb -e '(+ 1 2 3)'
6
nbb -e '(+ 1 2 3)'   0.17s  user 0.02s system 109% cpu 0.168 total

The baseline startup time for a script is about 170ms seconds on my laptop. When invoked via npx this adds another 300ms or so, so for faster startup, either use a globally installed nbb or use $(npm bin)/nbb script.cljs to bypass npx.

Dependencies

NPM dependencies

Nbb does not depend on any NPM dependencies. All NPM libraries loaded by a script are resolved relative to that script. When using the Reagent module, React is resolved in the same way as any other NPM library.

Classpath

To load .cljs files from local paths or dependencies, you can use the --classpath argument. The current dir is added to the classpath automatically. So if there is a file foo/bar.cljs relative to your current dir, then you can load it via (:require [foo.bar :as fb]). Note that nbb uses the same naming conventions for namespaces and directories as other Clojure tools: foo-bar in the namespace name becomes foo_bar in the directory name.

To load dependencies from the Clojure ecosystem, you can use the Clojure CLI or babashka to download them and produce a classpath:

$ classpath="$(clojure -A:nbb -Spath -Sdeps '{:aliases {:nbb {:replace-deps {com.github.seancorfield/honeysql {:git/tag "v2.0.0-rc5" :git/sha "01c3a55"}}}}}')"

and then feed it to the --classpath argument:

$ nbb --classpath "$classpath" -e "(require '[honey.sql :as sql]) (sql/format {:select :foo :from :bar :where [:= :baz 2]})"
["SELECT foo FROM bar WHERE baz = ?" 2]

Currently nbb only reads from directories, not jar files, so you are encouraged to use git libs. Support for .jar files will be added later.

Current file

The name of the file that is currently being executed is available via nbb.core/*file* or on the metadata of vars:

(ns foo
  (:require [nbb.core :refer [*file*]]))

(prn *file*) ;; "/private/tmp/foo.cljs"

(defn f [])
(prn (:file (meta #'f))) ;; "/private/tmp/foo.cljs"

Reagent

Nbb includes reagent.core which will be lazily loaded when required. You can use this together with ink to create a TUI application:

$ npm install ink

ink-demo.cljs:

(ns ink-demo
  (:require ["ink" :refer [render Text]]
            [reagent.core :as r]))

(defonce state (r/atom 0))

(doseq [n (range 1 11)]
  (js/setTimeout #(swap! state inc) (* n 500)))

(defn hello []
  [:> Text {:color "green"} "Hello, world! " @state])

(render (r/as-element [hello]))

Promesa

Working with callbacks and promises can become tedious. Since nbb v0.0.36 the promesa.core namespace is included with the let and do! macros. An example:

(ns prom
  (:require [promesa.core :as p]))

(defn sleep [ms]
  (js/Promise.
   (fn [resolve _]
     (js/setTimeout resolve ms))))

(defn do-stuff
  []
  (p/do!
   (println "Doing stuff which takes a while")
   (sleep 1000)
   1))

(p/let [a (do-stuff)
        b (inc a)
        c (do-stuff)
        d (+ b c)]
  (prn d))
$ nbb prom.cljs
Doing stuff which takes a while
Doing stuff which takes a while
3

Also see API docs.

Js-interop

Since nbb v0.0.75 applied-science/js-interop is available:

(ns example
  (:require [applied-science.js-interop :as j]))

(def o (j/lit {:a 1 :b 2 :c {:d 1}}))

(prn (j/select-keys o [:a :b])) ;; #js {:a 1, :b 2}
(prn (j/get-in o [:c :d])) ;; 1

Most of this library is supported in nbb, except the following:

  • destructuring using :syms
  • property access using .-x notation. In nbb, you must use keywords.

See the example of what is currently supported.

Examples

See the examples directory for small examples.

Also check out these projects built with nbb:

API

See API documentation.

Migrating to shadow-cljs

See this gist on how to convert an nbb script or project to shadow-cljs.

Build

Prequisites:

  • babashka >= 0.4.0
  • Clojure CLI >= 1.10.3.933
  • Node.js 16.5.0 (lower version may work, but this is the one I used to build)

To build:

  • Clone and cd into this repo
  • bb release

Run bb tasks for more project-related tasks.

Download Details:
Author: borkdude
Download Link: Download The Source Code
Official Website: https://github.com/borkdude/nbb 
License: EPL-1.0

#node #javascript

christian bale

christian bale

1617864218

Zoom Clone, Zoom Clone Script, Build Best App Like Zoom

A video conferencing app is a revolutionary virtual cloud-based solution that lets users to host virtual meetings and audio/video conferencing. It is easy to launch the Zoom like app in the wink using the Zoom clone script. This blog will give you insightful information about the Zoom clone app development process.

**Zoom clone app development with the essential features to incorporate
**

At the onset of the coronavirus, people mostly heard social distancing, lockdown, mask, work from home and so on. To prevent virus transmission, they are forced to stay indoors. Shopping malls, theatres, and educational institutions (colleges and schools) were closed. Despite this, employees are working from home. Yes, it is quite challenging for them.

With adapting to the new normalcy, employees have preferred the video conferencing app for conducting and attending online meetings. This is one of the major reasons for the sudden growth of video conferencing app like Zoom.

Seeing this demand for video call apps, entrepreneurs find this an opportunity to launch their app, similar to Zoom. Because, Zoom is the most downloaded app in the United States from March to April 2020.

After relaxing the restrictions at the end of 2020, the coronavirus spread is considerably increasing recently. Therefore, the demand for video conferencing surges.

The pandemic is not the only reason for the growth of the video conferencing app. Many companies and employees prefer this app as it saves time and money that has to be invested in setting up meeting rooms.

**Essential features to consider for Zoom like app development
**

Feature-set integration is an important point to consider for Zoom like app development. Because, the app features determine the app’s functionality.

Integrating new and innovative features will make your app stand out from the other video conferencing apps. Moreover, this does not necessarily mean that you should compromise any of the basic features.

The essential features that should be incorporated into your video conferencing app are as follows.

Chat

Using this feature, the users can connect with other users. While attending the meeting, they can chat with all the participants in the meeting or chat individually, depending on their choice.

**Virtual hand-raising
**

It is the most useful feature. Participants can speak at any time in the meeting using this feature. When one participant is presenting her/his topic in the meeting, it is not good to see the other participants interrupting. This prevents multiple participants from speaking at the same time.

**Screen sharing
**

This feature will let the participant in the meeting share the screen with other members.

**Mute participants
**

The background might be noisy for some participants. So, the host has the option to mute any participants during the meeting as per his/her desire.

**Scheduled meetings
**

Using this feature, the host can schedule their meetings with their participants. Also, the participant who initiates has the option to set reminders for the scheduled meetings.

**Video sharing
**

The Video Sharing feature will allow the participants to share the videos from YouTube in the session. This will make the session interactive. Notably, participants do not have to download the YouTube video for watching. Instead, the video conferencing app will display the video.

**Encryption
**

The app should not let unauthorized users join the meeting. Therefore, your app should be embedded with end-to-end encryption. By doing this, no one can join the meeting without the permission of the host.

**Zoom clone app development - How much does it cost?
**

When it comes to the Zoom like app development cost, it mainly depends on your app features and functionality.

There is a rough estimation that the app cost is less when you plan to incorporate the basic features. You have to invest a particular amount of money in including the advanced and new features.

Other important features that determine the price are the geographical location, app platform, and time frame.

**Final note
**

Hoping so, this article helps you in knowing the feature-set to integrate into a video conferencing app like Zoom. However, there is no doubt that the requirement for video conferencing apps is high.

As Zoom being the most popular app, incorporate the same features in your app and include additional features that Zoom has failed to work. Approach Uber Like App for Zoom like app development.

#zoom clone #zoom clone script #zoom clone app #zoom like app #zoom clone app development #video conferencing app like zoom

Hire Dedicated Node.js Developers - Hire Node.js Developers

If you look at the backend technology used by today’s most popular apps there is one thing you would find common among them and that is the use of NodeJS Framework. Yes, the NodeJS framework is that effective and successful.

If you wish to have a strong backend for efficient app performance then have NodeJS at the backend.

WebClues Infotech offers different levels of experienced and expert professionals for your app development needs. So hire a dedicated NodeJS developer from WebClues Infotech with your experience requirement and expertise.

So what are you waiting for? Get your app developed with strong performance parameters from WebClues Infotech

For inquiry click here: https://www.webcluesinfotech.com/hire-nodejs-developer/

Book Free Interview: https://bit.ly/3dDShFg

#hire dedicated node.js developers #hire node.js developers #hire top dedicated node.js developers #hire node.js developers in usa & india #hire node js development company #hire the best node.js developers & programmers

Aria Barnes

Aria Barnes

1622719015

Why use Node.js for Web Development? Benefits and Examples of Apps

Front-end web development has been overwhelmed by JavaScript highlights for quite a long time. Google, Facebook, Wikipedia, and most of all online pages use JS for customer side activities. As of late, it additionally made a shift to cross-platform mobile development as a main technology in React Native, Nativescript, Apache Cordova, and other crossover devices. 

Throughout the most recent couple of years, Node.js moved to backend development as well. Designers need to utilize a similar tech stack for the whole web project without learning another language for server-side development. Node.js is a device that adjusts JS usefulness and syntax to the backend. 

What is Node.js? 

Node.js isn’t a language, or library, or system. It’s a runtime situation: commonly JavaScript needs a program to work, however Node.js makes appropriate settings for JS to run outside of the program. It’s based on a JavaScript V8 motor that can run in Chrome, different programs, or independently. 

The extent of V8 is to change JS program situated code into machine code — so JS turns into a broadly useful language and can be perceived by servers. This is one of the advantages of utilizing Node.js in web application development: it expands the usefulness of JavaScript, permitting designers to coordinate the language with APIs, different languages, and outside libraries.

What Are the Advantages of Node.js Web Application Development? 

Of late, organizations have been effectively changing from their backend tech stacks to Node.js. LinkedIn picked Node.js over Ruby on Rails since it took care of expanding responsibility better and decreased the quantity of servers by multiple times. PayPal and Netflix did something comparative, just they had a goal to change their design to microservices. We should investigate the motivations to pick Node.JS for web application development and when we are planning to hire node js developers. 

Amazing Tech Stack for Web Development 

The principal thing that makes Node.js a go-to environment for web development is its JavaScript legacy. It’s the most well known language right now with a great many free devices and a functioning local area. Node.js, because of its association with JS, immediately rose in ubiquity — presently it has in excess of 368 million downloads and a great many free tools in the bundle module. 

Alongside prevalence, Node.js additionally acquired the fundamental JS benefits: 

  • quick execution and information preparing; 
  • exceptionally reusable code; 
  • the code is not difficult to learn, compose, read, and keep up; 
  • tremendous asset library, a huge number of free aides, and a functioning local area. 

In addition, it’s a piece of a well known MEAN tech stack (the blend of MongoDB, Express.js, Angular, and Node.js — four tools that handle all vital parts of web application development). 

Designers Can Utilize JavaScript for the Whole Undertaking 

This is perhaps the most clear advantage of Node.js web application development. JavaScript is an unquestionable requirement for web development. Regardless of whether you construct a multi-page or single-page application, you need to know JS well. On the off chance that you are now OK with JavaScript, learning Node.js won’t be an issue. Grammar, fundamental usefulness, primary standards — every one of these things are comparable. 

In the event that you have JS designers in your group, it will be simpler for them to learn JS-based Node than a totally new dialect. What’s more, the front-end and back-end codebase will be basically the same, simple to peruse, and keep up — in light of the fact that they are both JS-based. 

A Quick Environment for Microservice Development 

There’s another motivation behind why Node.js got famous so rapidly. The environment suits well the idea of microservice development (spilling stone monument usefulness into handfuls or many more modest administrations). 

Microservices need to speak with one another rapidly — and Node.js is probably the quickest device in information handling. Among the fundamental Node.js benefits for programming development are its non-obstructing algorithms.

Node.js measures a few demands all at once without trusting that the first will be concluded. Many microservices can send messages to one another, and they will be gotten and addressed all the while. 

Versatile Web Application Development 

Node.js was worked in view of adaptability — its name really says it. The environment permits numerous hubs to run all the while and speak with one another. Here’s the reason Node.js adaptability is better than other web backend development arrangements. 

Node.js has a module that is liable for load adjusting for each running CPU center. This is one of numerous Node.js module benefits: you can run various hubs all at once, and the environment will naturally adjust the responsibility. 

Node.js permits even apportioning: you can part your application into various situations. You show various forms of the application to different clients, in light of their age, interests, area, language, and so on. This builds personalization and diminishes responsibility. Hub accomplishes this with kid measures — tasks that rapidly speak with one another and share a similar root. 

What’s more, Node’s non-hindering solicitation handling framework adds to fast, letting applications measure a great many solicitations. 

Control Stream Highlights

Numerous designers consider nonconcurrent to be one of the two impediments and benefits of Node.js web application development. In Node, at whatever point the capacity is executed, the code consequently sends a callback. As the quantity of capacities develops, so does the number of callbacks — and you end up in a circumstance known as the callback damnation. 

In any case, Node.js offers an exit plan. You can utilize systems that will plan capacities and sort through callbacks. Systems will associate comparable capacities consequently — so you can track down an essential component via search or in an envelope. At that point, there’s no compelling reason to look through callbacks.

 

Final Words

So, these are some of the top benefits of Nodejs in web application development. This is how Nodejs is contributing a lot to the field of web application development. 

I hope now you are totally aware of the whole process of how Nodejs is really important for your web project. If you are looking to hire a node js development company in India then I would suggest that you take a little consultancy too whenever you call. 

Good Luck!

Original Source

#node.js development company in india #node js development company #hire node js developers #hire node.js developers in india #node.js development services #node.js development

christian bale

christian bale

1616051008

Zoom Clone, Zoom Clone Script, Build Best App Like Zoom

People’s lives have taken a massive deviation from the routine lifestyle and almost come to a standstill with the prevailing pandemic condition. As always, technology found its way to help everybody in compliance with the government’s emergency safety orders. With the comfort of working at home, people kept the world at its usual pace. This pandemic proved that we took a complete horseback ride on the technology. No distance was too far to fetch, as the notion to prevail was set in place with the technology.

Video conferencing app like Zoom connected the severed line as means of instant and comfortable communication. Forced to work at home, the Zoom app usage has become a routine in the post-pandemic era. Schools and universities have also made use of the app for their daily classes. The Zoom app also connected many stranded people to their expectant families via high-quality video calling.

Since Zoom video calling has given a sturdy answer to the entire world, its market is building and growing wider for every Zoom clone script that comes into the market. The world has welcomed almost every new digital invention given the situation now. This surmounting market growth invites creative people with innovative ideas to make bold and different digital race statements.

**What Is A Zoom App?
**

It is an on-the-go high-quality video calling application for conferences. This video calling application can host meetings for office goers and host rooms for schools and universities. Filled with the latest and thoughtful features like raise hands, mute audio, record meeting, etc, it has created a dominant usage of this video calling application now.

et’s Take A Look At The Diverse Video Streams Offered With Our Zoom Like App

**Air Meeting
**
Zoom meetings connected via HD video calls can be used for corporate meetings, online classes, and to chat with friends and family. There are useful features included in this form of video calling: calendars, event alerts, and scheduling.

**Video Webinar
**
Accompanied with the most useful features like raise a hand, public polls, and typing for a QA inside the call, this video webinar can accommodate up to 150 participants. Expandable up to 10,000 participants for just viewing, it offers much more than any traditional video meeting platform. This is one of the preferable streams for people who host shows and webinars. With expected updates, the webinar hosts can monetize their webinar services with Paypal and Zapier. It is deemed to be the most effective platform for broadcasting and events.

**Conference Rooms
**
Built solely for corporate meetings, this stream is the most popular among all. Its corporate-oriented features offer a lot of help for the host and also for the participants attending it. To represent the physical corporate meetings in every way possible and with the added touch of modern and digital updates, some innovative features can be used in the sessions, i.e., such as sharing videos, sharing files, and remote access participants’ whiteboards. There are few dedicated action buttons for quick switches when in meetings.

**Encrypted Calling
**
It works just like the other call platforms but is rebuilt and improvised with new features. Group calls and regular calls are now possible with our zenith bandwidth servers. Calls can be switched to video calling seamlessly. Background noise drowning is done effortlessly with our latest tech.

**Chat Station
**
With new integrated features apart from texting users can set reminders via chats, share event updates, schedule report sharing, invite to secret groups, archive chats, etc. The texting is given a new touch of feature for comfortable typing.

**Our Feature-rich Zoom Clone App Can Fit Into Any Business
**
**Corporates and IT’s
**
Clustered with tight office schedules and staying connected with their families, our video conferencing app like zoom can help them effortlessly. Be it work from home, conduct meetings, team calls, month-end analysis, or any labored work, companies can utilize a video calling app to make corporate life easy.

**Finance Sectors
**
Handling the most sensitive data for work, employees have to sweat around to make sure processes are intact throughout their work. Our zoom clone app development ensures a time-conserving smooth operation to manage all the schedules either from the office or at home.

**Healthcare Center
**
Modern medicine needs modern guidance today. Doctors and supporting health practitioners can use this app to provide patients with immediate assistance towards any concern to their health. People who can’t access the nearest hospitals can use our video app to consult a doctor.

**Educational Institutions
**
Since schools and universities are shut given the lockdowns globally, this is the sensible and easiest way to resume their classes. With many advanced features built into the app, students and teachers can share information and support it with study materials by sharing/downloading.

**Governments
**
This being the license for all bases of operations in the country, the functioning has to be non-stop and unwithered. Faced with so many challenges at work and home, employees and administrative executives are constantly trying to finish work on time. To help them relieve some workload and connect work to them digitally, our Zoom clone script is built to ensure unsevered workability.

**Impressive Features Built For Uninterrupted And Effortless Connectivity With Our Zoom Like App
**
**Uninterrupted Connection
**
From video calling across many device platforms, the user can connect instantly and securely. Offering seamless connectivity and high definition video calling with premium options.

**Virtual Conferences
**
With the power to act instantly, businesses can set meetings virtually and effortlessly at any time of the day. With no registration required, users can join the forum with just the meeting link.

**Schedule A Meeting
**
The host can set up a meeting in advance and share the link to the participants. Participants can also invite others to join the meeting with the host’s permission.

**Vote With Polls
**
When a decision is to be made, a poll option can be set up for the participants to vote on the requested topics, and the results can be viewed at the end of the virtual conference.

**Automated Meeting IDs
**
The users are given meeting IDs automatically generated by the zoom clone app just so the user does not clash into another meeting.

**Stream Live
**
The meetings can be shared to other social media platforms with our stream live option.
This makes the content more accessible across all major platforms.
Background Blur

To ensure a professional yet neat video setup, the user can opt for our background blur feature. It gives the user a nice experience of the app.

**Digital Hand Raise
**
To grab the host’s attention or the teacher, the user can hit this action button on the screen to engage in a conversation. Others on the call will be shown a notification, too, so that person alone can speak.

**Record Call And Meeting
**
The user can record the video for any future references or help the person who missed out on attending the meeting, and the recorded videos can be shared.

**Cast Youtube Videos
**
Casting youtube videos to add an impressive depth and liveliness in the meeting is a compelling feature. It encourages an enjoyable and thoughtful meeting atmosphere.

**To Sum Up
**
As the world is trying to connect back to its old ways of life, it’s crucial to meet that objective with the digital run. Connectivity has been the key to every business’s growth, and how fast we transfer information and solutions gives a business edge against rivals. Virtual connections with Zoom calling are admired as the modern-day workplace which enable workability effortlessly. Armed with clone apps, we help you load your innovative ideas to pull the trigger and shoot in the direction of rapid growth.

#zoom like app development #video conferencing app like zoom #zoom clone app development #zoom like app #zoom clone app #zoom clone script