CronJ

15/05/2020

Why Context?

In React, the components are the building blocks of the product. These components are defined in the tree hierarchy where one component is the parent of the child component.

The data flow in react is down the hierarchy i.e. the data flow from parent component to child component and further down.

If the component is deep down in the hierarchy from the root component then the data is passed through all the middle components first and then it will be accessible to the component that is deep down the hierarchy.

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React Context: In React, the components are the building blocks of the product. These components are defined in the tree hierarchy where one component is the parent of the child component.

30/04/2020

Ever noticed an application taking a lot of time to load initially?

The single large bundle, generated by webpack can be a reason, your application takes a significant amount of time to load in the browser. This affects user experience to a great extent. So, How can we optimize the bundle size of our application?

One simple solution can be, why not break the application in different routes and let routes handle the component’s rendering when these routes are visited. Seems reasonable!

But the fact here is routes has nothing to do with bundle size. They will still load components eagerly (during the initial load). But we still have a solution to work around routes to reduce bundle size and achieve fast loading time.

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Ever noticed an application taking a lot of time to load initially?   The single large bundle, generated by webpack can be a reason, your application takes a significant amount of time to load in the browser. This affects user experience to a great extent....

20/04/2020

Tech companies are also facing the delay in contracts, Revenue pressure, Investments have completely slowed down, but we can see more outsourcing work coming our way in the coming months!


Now let me throw some light in this totally dark atmosphere of a pandemic!.

Let us first understand that “Behavioral change” can affect the tech.


1. Post COVID-19 you can see human interventions are supplemented with technology.

2. Meetings/Gatherings will be moved to Video calls etc.

3.Business Travel will be completely reduced as a reason more Professionals will do online networking/deals etc.

4. IT training/workshops/conferences will shift completely to online.

5. The majority of Customer/Client interaction will be online.

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Tech companies are also facing the delay in contracts, Revenue pressure, Investments have completely slowed down, but we can see more outsourcing work coming our way in the coming months!

09/04/2020

React Redux: As the name suggests it’s a javascript library created by Facebook and it is the most popular javascript library and used for building User Interfaces(UI) specifically for single-page applications. React js enables the developer to break down complicated UI into a simpler one. We can make particular changes in data of web applications without refreshing the page. React allows creating reusable components.

Advantages of React js

Easy to learn and Easy to use:
React is easy to learn and simple to use and comes with lots of good paperwork, tutorials, and training resources. You can use plain JavaScript to create a web application and then handle it using this. It is also known as the V in the MVC (Model View Controller) pattern.

Virtual DOM:
Virtual DOM is a memory-representation of Real DOM(Document Object Model). A virtual DOM is a lightweight JavaScript object that is originally just a copy of Real DOM.

It helps to improve performance and thus the rendering of the app is fast.

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React Redux is strict about how code should be organized, which makes understanding the structure of any redux application easier for someone with redux knowledge

08/04/2020

In an era where technological advancements are beyond to a level where the feelings and emotions of the users can be patterned and coded.

Building any real-time application is the need of today’s industry. Nodejs Socket equips us with the potential to implement real-time analytics, binary streaming instant messaging and data collaboration.


The first question arises before using the socket implementation in any language is what is a socket and what is the purpose to use it.


What is Socket?
A socket is just the way or method for achieving the inter-process communication (IPC). It is used to allow one process to speak another process (on the same or different machine).

The analogy is just like the telephone is used to allow one person to speak to another person.

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Building any real-time application is the need of today’s industry. Nodejs Socket equips us with the potential to implement real-time analytics, binary streaming instant messaging and data collaboration.

07/04/2020

Redux Middleware: What struck your mind when you first heard the term ‘Middleware’? Let’s first try to understand it with the most general definition:-

Middleware offers a means for communicating with the action being dispatched before they reach the reducer.

Before understanding Redux Middleware, you should have a clear concept of redux. So let’s have a brief introduction about redux.

Redux is an open-source JavaScript library for front-end development. It’s an application data flow architecture. It is used with React to solve the ‘state transfer problem.’

It maintains a single immutable store tree to keep the state of the whole application which can’t be changed directly. A new object of the state is created when something changes (using actions and reducers). Redux has become popular because of its simplicity and small size(2 KB).

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Redux Middleware: What struck your mind when you first heard the term ‘Middleware’? Let’s first try to understand it with the most general definition

06/04/2020

React Fragments: As per React docs, a common pattern in React is for components to return multiple elements. Usually, these elements need to be wrapped in an element div.

In most of these cases, the wrapper div is irrelevant and is only added because React components support the return of only one element. This kind of behavior results in useless markup and sometimes even invalid HTML to be rendered, which is bad.

Let’s say, we have a component Table that renders an HTML table and inside that table, the columns are rendered with another component called Columns. It would probably look something like this –

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React Fragments: As per React docs, a common pattern in React is for components to return multiple elements. Usually, these elements need to be wrapped in an element div. In most of these cases, the wrapper div is irrelevant and is only added because React...

29/03/2020

Coronavirus disease (COVID-19) is a recently identified contagious disease. The coronaviruses family is called Coronavirus because corona means a crown, which can lead to common human diseases ranging from cold to mild or severe respiratory illnesses.

The recent coronavirus in 2019 has now gained huge attentiveness because it is a new form of coronavirus that we have never seen in human beings before. It could have leaped into the human population from an animal species and then started to spread.

Most of the individuals who have COVID-19 are diagnosed with moderate to severe illness to the organs of respiratory and can recover without special therapy. Most likely to experience severe diseases are older people with underlying medical problems, such as cardiovascular disease, diabetes, chronic respiratory disease, and cancer.

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Coronavirus disease (COVID-19) is a recently identified contagious disease. The coronaviruses family is called Coronavirus because corona means a crown, which can lead to common human diseases ranging from cold to mild or severe respiratory illnesses.   The recent coronavirus in 2019 has now gained...

28/03/2020

Coronavirus Updates: Get access to 190+ countries' latest live News | Updated information on Coronavirus disease (COVID-19) pandemic cases from CronJ's information board.

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Catch all country's live COVID-19 updates, announcements and how the Government is tracking.

27/03/2020

In response to the worsening COVID-19 coronavirus outbreak, CronJ, Authorised Partner of UP Government Skill Development, is announcing the below notification no. 09 /2020/446/###vi-03-2020-30(sa)/2020 issued by UP Government Labor Department.