There has been much notable advancement in the field of web development and digital marketing. Developer communities are now adopting more dynamic frameworks rather than conventional (old) programming languages like Java, PHP, and NET. Developers these days prefer more dynamic frameworks based on JavaScript.

We are marching towards an era of automation. Where every company which may be a start-up or a large-scale enterprise, is endeavoring to integrate automation testing in their release cycles as efficiently as they can. The cause is, drastic automation testing reduces the effort involved in validating repetitive test attempts. Now JavaScript is not referred to as an only developer programming language just because of the increasing demand for automation testing, JavaScript testing frameworks have been enhanced for fulfilling many other purposes, some of them fit for unit testing, while some are made for E2E(End-to-End) testing. It is simple that automation testers throughout the world have evolved pretty keenly to these JavaScript testing frameworks.

There are various JavaScript testing frameworks made available for automation testers that have become a reason for confusion for many. It is only subjective, the more choices you have in front of you, the higher time it will take for you to determine which JavaScript automation testing framework provides the best for you. As you read below you will discover the best JavaScript and its advantages. 

What is a JavaScript Testing Framework?

The JavaScript testing framework is a compelling framework based on JS, which is well noted for its ease of application in both frontend and backend development. These developments over time also result in the necessity for excellent testing tools.

Mocha js 

Mocha JS has been one of the most famous JavaScript testing systems since 2011. It works on Node.js and gives similarity to both frontend and backend no concurrent testing. With firm documentation support, Mocha has demonstrated to be a grounded system in the course of recent years. 

Facilitated on Github, Mocha is regarded for its flexibility, and thus, it has been demonstrated to be considered possibly the most relied-on library among JavaScript engineers. It affords compatibility for both frontend and backend testing, Node JS debugger is supported which makes error tracing more obvious, accurate reporting provides support for all browsers including the decapitated Chrome library, and a very convenient framework for the developers to record test cases. 

Jest 

Jest is ostensibly the most mainstream JavaScript testing structure utilized and kept up with Facebook. The JEST testing structure gives a “zero-design” testing experience. 

Jest is a profoundly favored system for applications dependent on React. It gives an unambiguous and extremely helpful interface. This structure comes packaged for certain fascinating highlights like depiction testing and an underlying apparatus for code inclusion. There are likewise a ton of assets accessible online for JEST. The main feature of the same is compatible with Node JS, React, Angular, Vue JS, and other Babel-based projects, Standard syntax with documentation support, very fast and highly performant, and managing tests with larger objects is possible using Live Snapshots. 

Jasmine

Came into existence in 2010, Jasmine is an open-source and famous JavaScript testing framework. It has the capacity of testing all types of JavaScript applications. This framework supports Behavioural Driven Development (BDD). With the help of Jasmine, one can perform test cases similar to user behavior on online websites. Jasmine is highly influenced and similar to JS Spec, Rspec.

Jasmine is very worthwhile for front-end testing. It involves both visibilities testing as well as the responsiveness testing of UI across a plethora of devices with various resolutions. One can also predict user behavior with custom delay and set period for simulating the actual user behavior. The main consequence of this provides a small, clean, and straightforward syntax for easy testing does not require any Document Object Model (DOM) and implements support for frontend and backend tests, ease in coding as the syntax practicing is very similar to a natural language, strong documentation and to community support. 

Karma

Karma is another very popular open-source productive testing environment. It allows a QA to perform tests for an application in all kinds of different environments. Karma enables the application script to be used and experienced on real browsing devices such as phones and tablets. Karma aims to provide a testing condition for developers wherein they don’t need to set up loads of configurations. Instead, they can just take the tests and get instant feedback.

Supports integrations with top CI/CD tools such as Jenkins, Travis, and Semaphore, tests on real devices and browsers are possible, provides support for headless environments like Phantom JS, and supports remote testing directly from a terminal or IDE. It is a framework for agnostic, which means it can represent tests with popular frameworks like Mocha, Jasmine. One can also record a simple adapter for a specific framework.

Puppeteer 

Puppeteer is a library preferably than a framework moderately like the rest of the list. It has been taken into consideration since it offers a variety of advantages with regard to JavaScript testing. It is a Node library that provides a high-level API. This API is needed to control Chrome or Chromium over the DevTools protocol. One of the limitations of this is the point that it can only be used with Chrome and Chromium. It can function for browser-specific applications such as page structure tests, exerting website screenshots, and more. One can also crawl and capture pre-rendered content for Single Page Applications (SPA). Any more benefits for the same are easy automating UI testing, form submission, and keyboard inputs, easy generation of screenshots and PDFs of webpages, and support for testing chrome extensions. 

One can easily find performance errors on a site using the timeline trace. Although Puppeteer has been recently introduced in the testing landscape, it has already been adopted by developers in large numbers. The future for Puppeteer looks promising.

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Let’s look at what it is and why you should choose it for your next project.

Angular JS is a JavaScript system that is basically utilized for improving the improvement cycle. This is absolutely why designers have begun utilizing this structure, as they can all the more effectively perform web and application undertakings, by straightforward incorporation of different HTML codes. 

This improvement system has a place in the open-source world. These days, it is basically incredible to go around the usage of this advancement system, as it serves to manage a wide scope of difficulties that web designers experience. 

The essential job of this JavaScript system is building CRUD applications for the customer side. 

Thus, in the event where utilizing Angular JS has not yet begun, how about we figure out two or three reasons why you should think about utilizing it. 

What are the essential advantages of this structure? 

On the off chance that you choose to embrace Angular JS in your work process, you will encounter the accompanying advantages.

User interface

The system depends on HTML to make the best UI for web and application clients. In case you are searching for an approach to make a shocking UI, Angular JS is your go-to arrangement prepared to do effectively convey this undertaking. This permits the engineer to construct lightweight, yet easy-to-use applications. 

Architecture 

Not like all different structures that are exclusively cantered around building portable applications, Angular JS permits separating them in the MVC design. On what grounds is this significant? All things to be considered, it is way simple to create web applications that can be compared to other versatile applications. This emerges to be vital for the advancement interaction, as it caters to permits engineers to save time and quickly arrive at cut-off times, bringing down the web application creation time. 

Coding

The entire interaction of coding requires unbearable insights concerning a language and carrying out complex arrangements. Angular JS is used to work in general interaction. Not at all like JavaScript, has the Angular JS system depended on HTML also, permitting it to handily make intuitive UIs. This is significant for the simple making of intuitive website architectures. 

It just makes it conceivable to accomplish more with less coding, without expecting to lose time on an immense measure of intricacies all the while. 

Testing 

Testing is a significant piece of programming improvement in any specialty. From the particular mark of advancement of Angular JS, individuals behind it had this idea in their psyches. This makes improvement with Angular JS the right methodology, as engineers can undoubtedly discover blunders and code absconds, diminishing the time expected to complete the undertaking. 

Speed 

With the presence of the MVC design and simple testing, engineers can move at essentially higher paces and convey any undertaking quicker. This makes Angular JS an entirely good structure that a great many engineers choose to utilize. 

Modularity 

Fostering a web application through modules implies better usefulness, design, and adaptability. This is the place where Angular JS genuinely sparkles, as it empowers the designer to effectively separate the undertaking in various modules, working on the work process and the outcome. 

Data binding 

Two-way information which is restricting shows that any advancement that is forced to the recently referenced modules will be rapidly detectable. Consequently, it is perhaps one of the most well-known systems utilized on the web today. 

Filters 

Channels assume a significant part in the advancement cycle, as they serve to put together put away information. With Angular JS, you can depend on various channels like Number, Lowercase, Uppercase, Order By, and numerous others. This is exceptionally pragmatic while introducing large lumps of information to a client, or for the formation of the data set hunt usefulness. 

Custom directives 

Designers can make their own HTML client mandates, accordingly eliminating any restrictions of the structure. 

SPA features 

Angular JS packs a lot of SPA (Single Page Application) highlights. This makes it a lot simpler to make and control online structures. It sets up a speedier work process for the entire group and makes the entire interaction simpler to achieve. Engineers basically have more power over structure approval capacities. 

These are just a portion of the reasons why you ought to pick Angular JS for your next project. Note that it was made by Google’s staff and that the organization has a devoted number of representatives effectively dealing with this system. This guarantees that it is simply going to improve later on, working on the web advancement measure significantly more. 

In the event that you have not begun utilizing Angular JS, the time has come to begin doing as such, as it essentially brings considerably more adaptability, making the advancement interaction simpler and better coordinated.

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Google released the next version of javascript popular framework, angular 7 which already arrived with many changes, significant updates & many new features.There are some very interesting new tooling changes as well as some great features to improve performance.

Angular 7  new features

CLI Prompts

The Angular team has consistently focused on improving the tools available to developers and the new CLI prompts are no different.

Usually when we run commands like ng new or ng add, it’s a single pass.If we forget to include routing then by skipping the installation just run ng new “myNewApp” then a prompt will be generated for adding route.

If we want to add different stylesheet format then CLI will offer to select between CSS,SCSS,SASS,LESS and more.

The great features is that it is customizable just add schematic.json using this we can tell CLI which prompt to execute.

Application performance

Angular 7 is even faster than previous versions. The upgrade is faster (less than 10 minutes for many apps according to the official announcement), the framework is faster, the virtual scrolling CDK module detailed above makes apps run with better performance.

Here is where things get interesting: Angular is not only dedicated to making the framework as small as possible, it’s also dedicated to making your apps as small as possible. They’ve corrected a common production mistake where the reflect-metadata polyfill is included in production. V7 automatically removes it.

New projects are also now defaulted using Budget Bundles which work to notify you when your app is reaching size limits. By default, you get warnings when you reach 2MB and errors at 5MB.

And when you need a little more space, just jump in your angular.json file  and adjust as necessary.

“budgets”: [{
 “type”: “initial”,
 “maximumWarning”: “2mb”,
 “maximumError”: “5mb”
}]

Virtual Scrolling

As many mobile frameworks have started to make the move toward dynamically loading data such as images or long lists, Angular has followed suit by adding the ScrollingModule to allow for virtual scrolling. As elements gain or lose visibility, they are virtually loaded and unloaded from the DOM. Performance is greatly increased to the user’s eyes. Next time you have a potentially large list of items for your users to scroll, stick it in a cdk-virtual-scroll-viewport component and take advantage of the performance boost!

Drag & Drop Functionality

Now you can remain entirely within the Angular Material module and implement drag and drop support including reordering lists and transferring items between lists. The CDK includes automatic rendering, drag handlers, drop handlers and even the ability to transfer data.

Dependency Updates In Angular 7

TypeScript 3.1 support
Angular 7 have updated TypeScript version from 2.7 to 3.1 which is it’s the latest release. It’s compulsory to use TypeScript latest version while working with Angular 7. Usually Angular lags a few releases behind, so they have done that to match latest TypeScript version for once.

RxJS 6.3
The latest version of RxJs(version 6.3.3) is added in Angular 7 with it new exciting additions and changes. These changes provide developers a boost in performance and easier to debug call stacks and improvement in modularity also making it as backward compatible as possible.

Added Support for Node v10
Team Angular 7 now support the Node V10 with backward compatibility as well.

How to update to Angular 7

To update latest version of CLI & Material, simply run the single command:

ng update @angular/cli @angular/core

If you are using angular material, just follow with this command:

ng update @angular/material

Conclusion

Summing up all the above features, Angular v7 looks like a much more accessible solution focused on the modern technological trends added features like bitcoin mining, Virtual scrolling, drag-drop, Angular material and many more, still no word on Ivy in a current version. Angular Team has done some great job for making Angular better. If you are planning on implementing your own solution based on the web & mobile technologies, make sure to consider Angular 7 as the efficient, up-to-date development framework.

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