ECMAScript 6: You Need to Know About This

 

ES6 is the latest version of JavaScript. While ES5 and ES2015 are still widely used today, ES6 is a significant update from both of them. The ES6 specification was finalized in June 2015, and it’s now supported by all major browsers with some minor exceptions.

ES6 is designed to be easier to read and write than previous versions of JavaScript. Let’s take a look at some of the new features implemented in ES6 that are more intuitive and cleaner than their predecessors.

What is ECMA?

European Computer Manufacturers Association (ECMAScript) or (ES) is a standard for scripting languages like JavaScript, ActionScript and JScript.

It was initially created to standardize JavaScript, which is the most popular implementation of ECMAScript.

What is ECMAScript?

ECMAScript (ES) is a scripting language specification standardized by ECMAScript International.

It is used by applications to enable client-side scripting.

The specification is influenced by programming languages like Self, Perl, Python, and Java etc. Languages like JavaScript, Jscript and ActionScript are governed by this specification.

 

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AngularJS vs ReactJS: Which One is Best for Next Front-end Development

ReactJS and AngularJS are the most popular front-end JavaScript frameworks today. They both have their own strengths and weaknesses, but that’s why they’re so popular.

Famous YouTubers, plugin makers, and developers around the world are opting for either one over the other.

The two front-end frameworks are so popular because they solve distinct problems and because they do so in a variety of ways.

What is ReactJS?

ReactJS is an open-source JavaScript library that is used for building user interfaces specifically for single-page applications. It’s used for handling the view layer for web and mobile apps. React also allows us to create reusable UI components.

ReactJS is a JavaScript library for building user interfaces. It’s one of many frameworks that have popped up in the past few years as front-end developers seek new ways to build web apps.

Functional Component in ReactJS

Functional components are some of the more common components that will come across while working in React. These are simply JavaScript functions. We can create a functional component to react by writing a JavaScript function.

Class Components in ReactJS

React class-based components are the bread and butter of most modern web apps built in ReactJS. These components are simple classes (made up of multiple functions that add functionality to the application). All class-based components are child classes for the Component class of ReactJS.

 

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JavaScript Promises And Fetch API Uses Guide

 

JavaScript is an interpreted language where codes are executed line by line. But the execution will not wait for the dependent codes to be executed before you execute the next line.

To achieve this feature JavaScript introduces the callback function. Basically this is associated with the asynchronous operations in JavaScript. But the issue with the callback function is if we have more than one asynchronous operation running at the same time. So it became hell to manage the code using the callback functions.

The problems are

• Hard to understand the codes because the code becomes lengthier and nested structure.
• Hard to manage the codes, because it is not clear which callbacks are called when and also there are so many callbacks to write to perform a particular task.
• Also need not satisfy all the requirements

Here JavaScript introduces the concept of Promises.

Promises are JavaScript objects that represent an eventual completion or failure of an asynchronous operation. Promises either resolved or rejected. That means it will either return success on resolve or error on rejection.

In case of multiple asynchronous operations it provides chaining of Promises to handle that. So the code here is understandable and managed. Here is some example of callbacks and promises for your understanding

 

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What Is NodeJS and It’s Benefits for Business Applications

NodeJS is an open source, server-side script. JavaScript has many engines and spider monkey is the first JavaScript engine. It was developed by Netscape. Then so many engines were built. Internet explorer’s engine is chakra. After some years chrome has developed a V8 engine which runs on the top of Google’s open-source scripting engine V8. It's very fast, lightweight and efficient.

NodeJS uses the asynchronous mode of operation, event-driven Input/output rather than using the threads for each process and it is a cross-platform JavaScript run-time environment that executes JavaScript code to run on the server.

Why Node JS?

Node.js uses JavaScript for creating server side applications or we can also use any other languages that can be compiled to JavaScript (like typescript). The JavaScript is written in the same way as we are using in any client-side application. But to develop applications with Node, we need to set up the node development environment.

Node.js is the greatest tool for building real-time web applications and rest API’s. It provides cross-platform applications which run easily on any web. So you basically don’t need anything extra for running up a node application. According to a Node.js Survey of users 43% of Node.js programmers claim to use Node.js for enterprise apps as it’s a light, easy, scalable and open-source language platform which makes it very easy to build apps even at the enterprise level also.

 

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