AngularJS Techniques

AngularJS is a Javascript MVC framework created by Google to build properly architectured and maintenable web applications.

AngularJS takes another approach. It attempts to minimize the impedance mismatch between document centric HTML and what an application needs by creating new HTML constructs. AngularJS teaches the browser new syntax through a construct we call directives. Examples include:

Data binding, as in {{}}.
DOM control structures for repeating, showing and hiding DOM fragments.
Support for forms and form validation.
Attaching new behavior to DOM elements, such as DOM event handling.
Grouping of HTML into reusable components.

AngularJS is a MVC framework that defines numerous concepts to properly organize our web application. Our application is defined with modules that can depend from one to the others. It enhances HTML by attaching directives to your pages with new attributes or tags and expressions in order to define very powerful templates directly in your HTML. It also encapsulates the behavior of your application in controllers which are instanciated thanks to dependency injection. Thanks to the use of dependency injection, AngularJS helps you structure and test your Javascript code very easily. Finally, utility code can easily be factorized into services that can be injected in your controllers. Now let’s have a closer look at all those features.

Feature 1: Two Way Data-Binding

Think of your model as the single-source-of-truth for your application. Your model is where you go to to read or update anything in your application.

Data-binding is probably the coolest and most useful feature in AngularJS. It will save you from writing a considerable amount of boilerplate code. A typical web application may contain up to 80% of its code base, dedicated to traversing, manipulating, and listening to the DOM. Data-binding makes this code disappear, so we can focus on our application.

Think of your model as the single-source-of-truth for your application. Your model is where you go to to read or update anything in your application. The data-binding directives provide a projection of your model to the application view. This projection is seamless, and occurs without any effort from you.

Traditionally, when the model changes, the developer is responsible for manually manipulating the DOM elements and attributes to reflect these changes. This is a two-way street. In one direction, the model changes drive change in DOM elements. In the other, DOM element changes necessitate changes in the model. This is further complicated by user interaction, since the developer is then responsible for interpreting the interactions, merging them into a model, and updating the view. This is a very manual and cumbersome process, which becomes difficult to control, as an application grows in size and complexity.

There must be a better way! AngularJS’ two-way data-binding handles the synchronization between the DOM and the model, and vice versa.

Here is a simple example, which demonstrates how to bind an input value to an

element.

Name:

Enter a name here

Hello, {{yourName}}!

This is extremely simple to set up, and almost magical…

Feature 2: Templates

It’s important to realize that at no point does AngularJS manipulate the template as strings. It’s all the browser DOM.

In AngularJS, a template is just plain-old-HTML. The HTML vocabulary is extended, to contain instructions on how the model should be projected into the view.

The HTML templates are parsed by the browser into the DOM. The DOM then becomes the input to the AngularJS compiler. AngularJS traverses the DOM template for rendering instructions, which are called directives. Collectively, the directives are responsible for setting up the data-binding for your application view.

It is important to realize that at no point does AngularJS manipulate the template as strings. The input to AngularJS is browser DOM and not an HTML string. The data-bindings are DOM transformations, not string concatenations or inner HTML changes. Using the DOM as the input, rather than strings, is the biggest differentiation AngularJS has from its sibling frameworks. Using the DOM is what allows you to extend the directive vocabulary and build your own directives, or even abstract them into reusable components!

One of the greatest advantages to this approach is that it creates a tight workflow between designers and developers. Designers can mark up their HTML as they normally would, and then developers take the baton and hook in functionality, via bindings with very little effort.

Here is an example where I am using the ng-repeat directive to loop over the images array and populate what is essentially an img template.

function AlbumCtrl($scope) {
scope.images = [
{“thumbnail”:”img/image_01.png”, “description”:”Image 01 description”},
{“thumbnail”:”img/image_02.png”, “description”:”Image 02 description”},
{“thumbnail”:”img/image_03.png”, “description”:”Image 03 description”},
{“thumbnail”:”img/image_04.png”, “description”:”Image 04 description”},
{“thumbnail”:”img/image_05.png”, “description”:”Image 05 description”}
];
}

{{image.description}}

It is also worth mentioning, as a side note, that AngularJS does not force you to learn a new syntax or extract your templates from your application.

Feature 3: MVC

AngularJS incorporates the basic principles behind the original MVC software design pattern into how it builds client-side web applications.

The MVC or Model-View-Controller pattern means a lot of different things to different people. AngularJS does not implement MVC in the traditional sense, but rather something closer to MVVM (Model-View-ViewModel).

The Model

The model is simply the data in the application. The model is just plain old JavaScript objects. There is no need to inherit from framework classes, wrap it in proxy objects, or use special getter/setter methods to access it. The fact that we are dealing with vanilla JavaScript is a really nice feature, which cuts down on the application boilerplate.

The ViewModel
A viewmodel is an object that provides specific data and methods to maintain specific views.

The viewmodel is the $scope object that lives within the AngularJS application. $scope is just a simple JavaScript object with a small API designed to detect and broadcast changes to its state.

The Controller
The controller is responsible for setting initial state and augmenting $scope with methods to control behavior. It is worth noting that the controller does not store state and does not interact with remote services.

The View
The view is the HTML that exists after AngularJS has parsed and compiled the HTML to include rendered markup and bindings.

This division creates a solid foundation to architect your application. The $scope has a reference to the data, the controller defines behavior, and the view handles the layout and handing off interaction to the controller to respond accordingly.

Feature 4: Dependency Injection

AngularJS has a built-in dependency injection subsystem that helps the developer by making the application easier to develop, understand, and test.

Dependency Injection (DI) allows you to ask for your dependencies, rather than having to go look for them or make them yourself. Think of it as a way of saying “Hey I need X’, and the DI is responsible for creating and providing it for you.

To gain access to core AngularJS services, it is simply a matter of adding that service as a parameter; AngularJS will detect that you need that service and provide an instance for you.

function EditCtrl($scope, $location, $routeParams) {
// Something clever here…
}
You are also able to define your own custom services and make those available for injection as well.

angular.
module(‘MyServiceModule’, []).
factory(‘notify’, [‘$window’, function (win) {
return function (msg) {
win.alert(msg);
};
}]);

function myController(scope, notifyService) {
scope.callNotify = function (msg) {
notifyService(msg);
};
}

myController.$inject = [‘$scope’, ‘notify’];

Feature 5: Directives

Directives are my personal favorite feature of AngularJS. Have you ever wished that your browser would do new tricks for you? Well, now it can! This is one of my favorite parts of AngularJS. It is also probably the most challenging aspect of AngularJS.

Directives can be used to create custom HTML tags that serve as new, custom widgets. They can also be used to “decorate” elements with behavior and manipulate DOM attributes in interesting ways.

Here is a simple example of a directive that listens for an event and updates its $scope, accordingly.

myModule.directive(‘myComponent’, function(mySharedService) {
return {
restrict: ‘E’,
controller: function($scope, $attrs, mySharedService) {
$scope.$on(‘handleBroadcast’, function() {
$scope.message = ‘Directive: ‘ + mySharedService.message;
});
},
replace: true,
template: ‘

};
});

Then, you can use this custom directive, like so.

Creating your application as a composition of discrete components makes it incredibly easy to add, update or delete functionality as needed.

we will discuss here about how to set up AngularJS library to be used in web application development. We will also briefly study the directory structure and its contents.

When you open the link https://angularjs.org/, you will see there are two options to download AngularJS library –

AngularJS Download
View on GitHub – Click on this button to go to GitHub and get all of the latest scripts.

Download AngularJS 1 – Or click on this button, a screen as below would be seen –

AngularJS Download
This screen gives various options of using Angular JS as follows –

Downloading and hosting files locally

There are two different options legacy and latest. The names itself are self descriptive. legacy has version less than 1.2.x and latest has 1.5.x version.

We can also go with the minified, uncompressed or zipped version.

CDN access – You also have access to a CDN. The CDN will give you access around the world to regional data centers that in this case, Google host. This means using CDN moves the responsibility of hosting files from your own servers to a series of external ones. This also offers an advantage that if the visitor to your webpage has already downloaded a copy of AngularJS from the same CDN, it won’t have to be re-downloaded.

Try the new angularJS 2 – Click on this button to download Angular JS beta 2 version.This version is very fast, mobile supported and flexible compare to legacy and

latest of AngularJS 1

We are using the CDN versions of the library throughout this tutorial.

Example
Now let us write a simple example using AngularJS library. Let us create an HTML file myfirstexample.HTML as below –

Welcome {{helloTo.title}} to the world of Tutorialspoint!

Following sections describe the above code in detail –

Include AngularJS

We have included the AngularJS JavaScript file in the HTML page so we can use AngularJS –

If you want to update into latest version of Angular JS, use the following script source or else Check the latest version of AngularJS on their official website. Point to AngularJS app Next we tell what part of the HTML contains the AngularJS app. This done by adding the ng-app attribute to the root HTML element of the AngularJS app. You can either add it to HTML element or body element as shown below –

View
The view is this part –

Welcome {{helloTo.title}} to the world of Tutorialspoint!

ng-controller tells AngularJS what controller to use with this view. helloTo.title tells AngularJS to write the “model” value named helloTo.title to the HTML at this
location.

Controller
The controller part is –

This code registers a controller function named HelloController in the angular module named myapp. We will study more about modules and controllers in their respective chapters. The controller function is registered in angular via the angular.module(… ).controller(… ) function call.

The $scope parameter passed to the controller function is the model. The controller function adds a helloTo JavaScript object, and in that object it adds a title field.

Execution
Save the above code as myfirstexample.HTML and open it in any browser. You will see an output as below –

Welcome AngularJS to the world of Tutorialspoint!
When the page is loaded in the browser, following things happen –

HTML document is loaded into the browser, and evaluated by the browser. AngularJS JavaScript file is loaded, the angular global object is created. Next, JavaScript which registers controller functions is executed.

Next AngularJS scans through the HTML to look for AngularJS apps and views. Once view is located, it connects that view to the corresponding controller function.

Next, AngularJS executes the controller functions. It then renders the views with data from the model populated by the controller. The page is now ready.

Developing Awesome Mobile Apps

Test your product

Once you are done with an app, you shouldn’t launch it unless you have passed it through important tests. So, it’s a good idea to use a good tool for testing purpose.

Motivate your users

While it’s better for you to get motivated, make sure you motivate your users as well. What you need to do is find out what motivates them the most. This way you can have a solid base for making an awesome user experience with your apps.

Consider offline experience

Know that some apps offer great benefits even if the user is offline. For instance, popular apps like Evernote and WorkFlowy work great even without the access to the Internet.

The point is that this is the design practice that today’s developers should aim at. In other words, the applications should provide value even if the user doesn’t have access to the web.

Make it easy to use

Although 50% of citizens of the USA own mobile phones, know that not all of them know how to use their phones in the best way possible. Most of them are not expert users. So, what we want to say is that your app should be as easy to use as possible so that even a first time user could get the hang of it.

Make it quite simple

As soon as you have a design ready, make sure you have a family member or a friend use it. How did he feel while using it? What did they say about it? Did they find it easy to use? Make a note of what they say and follow it while making improvements to your product.

Consider both the platforms

The usage pattern of Android users is different from that of iPhone users. Be sure your design pattern suits the OS you are going to launch it on. One size may not fit everyone.

Use Grids

While designing, it’s a good idea to use a grid as it will help you keep things consistent throughout the process. As a matter of fact, grids are one of the most important concepts as far as making an app is concerned. This tool will help you maintain consistency and create something that will be stunning.

Emerging Technologies Among Java Developers

  1. 1) Unit Testing:
    In the event that you need to improve as an engineer, at that point you should take a shot at your unit testing aptitudes. What’s more, not simply unit testing, but rather robotized testing? This likewise incorporates combination testing. You can learn JUnit 5 and other propel unit testing libraries like Mockito, Power Mock, Cucumber, and Robot to take your unit testing expertise to next level. Mockito is extremely effective and enables you to compose a unit test for complex classes by taunting conditions and simply concentrating on the items under test. In the event that you an apprentice in unit testing and need to learn it, you should gear up and work harder to compete your rivals.
  2. 2) Big Data and Java EE 8:
    Big data has been a very trendy and encouraging field in the Software industry for the last 3 years. Plenty of jobs wait for the one who is comfortable with Big Data. This has been among top 10 technologies for the java developers. Many new features come with Java EE 8. Servlet 4.0 with support of http://2, new and improved JSON building and processing, improved CDI and Restful web services, new JSF version, new Java EE Security API are some of the updated versions in the field. But majority of back-end developers tend to pick Spring as their technology for java.
  3. Node JS:
    Today, we are pleased to have a platform that is built on the Chrome’s Java Script runtime known as Node.js. This has helped a great deal for easy building of the fast and scalable network applications in the dynamic world today. The code has the property of being lightweight as Node.js is based on an event-driven, non-blocking I/O model. This has emerged as recent trends in the technologies employed by the java developer. It is very efficient and is perfect for data intensive and Real Time (RT) applications that may run across any number of the distributed devices.
  4. Design Patterns and Readability of the Content:
    No doubt, design patterns are neither are a technology nor a framework, yet they are the field of discussion among the java developers. Even in the present scenario, readable, clean and maintainable code is the goal of many java developers and it has to be this way only.
  5. Angular and React:
    If want to be known as a full-stack developer, it is mandatory that you have considerable knowledge in front-end technologies too. For building an attractive and eye catching presentation layer of the web-app, Angular and React offer the opportunity to do this in a more convenient and time efficient manner. Though React and Angular are not the only options available nowadays, but still their growth and popularity is evident from the positive reviews given by the end consumers.

Point of Sale Software

MEET THE INCORRUPTIBLE CASHIER

So in 1879, Ritty invented the “Incorruptible Cashier,” a device that registered transactions made at his business. Some time after that, he patented his invention and sold it to salesman Jacob H. Eckert, who founded the National Manufacturing Company (NMC). Eckert later sold the company to John H. Patterson, a retail coal shop owner in Coalton, Ohio.

NCR TAKES THE REIGNS

Upon acquiring the business, Patterson renamed the company National Cash Register (NCR), which still exists today. He also added new features, such as custom employee drawers and bells, as well as the all-important paper receipts.

Electric and computerized point of sale systems arrive.

In 1906, inventor Charles F. Kettering, who worked for NCR, developed the first cash register powered by an electric motor. The device made it faster and easier for cashiers to ring up sales and keep tabs on transactions.

NCR RAMPS UP SALES AND DEVELOPMENT

Over the next several decades, more improvements were made to the cash register, and NCR came up with better ways to market and sell the device. These efforts paid off well for the company. By the mid-1900s, the cash register had become a staple in retail stores.

THE CASH REGISTER MEETS THE COMPUTER

In the 1970s, innovation helped traditional cash registers evolve into computerized point of sale systems. It was also during these years that devices such as credit card terminals and touchscreen displays were introduced.

By the time the 80s and 90s rolled along, the retail world saw the emergence of electronic registers, barcode scanners, PC-based point of sale systems, and credit card devices.

Point of sale systems go mobile.

Mobile point of sale (mPOS) solutions have made such a huge impact in the industry that in 2014 a majority of UK retailers (53%) rated mPOS as the most important in-store technology for consumers. mPOS systems are also gaining market share. In 2015, the IHL Group found that mobile POS software installs are up 41% in North America year to year.

FROM POS TO RETAIL MANAGEMENT

Over the years, we’ve seen POS systems evolve from cash registers that simply ring up sales to full-fledged retail management solutions that allow retailers to stay on top of inventory, reporting, customer management, and ecommerce from one platform.

SLEEKER AND MORE PORTABLE DEVICES

It’s not just features that have evolved. Thanks to the proliferation of mobile devices, retail point of sale solutions now look better than ever. Clunky registers and bulky computers are being replaced by sleek tablets and phones. These devices not only look good and save space, but they also help retailers improve the shopping experience.

Hybrid Databases

  • Do you see your data set growing to larger numbers?
    If you have a product offering that serves a niche you feel has amazing potential, setting up a hybrid database from inception can reduce the number of headaches that would arise from a newfound spike in traffic or complexity of the transactions being performed. If you feel that your database will grow at a slower, more organic rate, you may never need to employ hybrid database architecture. Strong consideration should be given to the hybrid options, if you feel that there will be upward momentum at a fast pace.
  • Will the database interactions be highly transactional or minimalistic?
    This is an important question to consider because a singular transaction will take up a much smaller amount of space than a query that has several components. It’s far easier to maintain a database with one million users that only complete a single query, than it would be for those same million users to execute transactions that have multiple components. The space required for complex transactions is far greater than that for a one-and-done use.
  • Is your current database slow or clunky?
    Usually, if this persists for more than a few weeks, procrastination has set in and your employees are numb to the fact that they’re just going to have to wait for the pinwheel of doom to finish processing their tasks. When the database begins to get slower, it’s only a matter of time before it has to be upgraded or replaced altogether. By switching things up to a hybrid database, your employees will be able to experience the best of both worlds, as far as databases are concerned. The SQL side of the equation allows for transactional queries and the NoSQL side allows for CRUD Operations (Create, Read, Update, Delete).

Several aspects of the hybrid database make it popular with the SaaS crowd. One reason is that they increase the application performance, especially when it comes to the read/write operations. Another advantage lies in the fact that the database allows for data distribution across lower cost clusters, all while maintaining ACID properties across more sensitive portions of the dataset. Increased reporting ability across large datasets is also another feature that increases productivity and keeps the project on track.

Linux Server Hardening

This is directly at odds for the increased necessity for comprehensive security measures in a world full of malware, hacking threats and would-be data thieves.

Most organizations will adopt a layered security strategy, providing as many protective measures for their IT infrastructure as are available – firewalls, sandboxes, IPS and IDS, anti-virus – but the most secure computing environments are those with a ‘ground up’ security posture.

If data doesn’t need to be stored on the public-facing Linux web server, then take it off completely – if the data isn’t there, it can’t be compromised.

If a user doesn’t need access to certain systems or parts of the network, for example, where your secure Ubuntu server farm is based, then revoke their privileges to do so – they need access systems to steal data so stop them getting anywhere near it in the first place.

Similarly, if your CentOS server doesn’t need FTP or Web services then disable or remove them. You reduce the potential vectors for security breaches every time you reduce means of access.

To put it simply, you need to harden your Linux servers.

Linux Hardening Policy background

The beauty of Linux is that it is so accessible and freely available that it is easy to get up and running with very little training or knowledge. The web-based support community places all the tips and tutorials you’ll ever need to carry out any Linux set-up task or troubleshoot issues you may experience.

Finding and interpreting the right hardening checklist for your Linux hosts may still be a challenge so this guide gives you a concise checklist to work from, encompassing the highest priority hardening measures for a typical Linux server.

Account Policies

  • Enforce password history – 365 days
  • Maximum Password Age – 42 days
  • Minimum password length – 8 characters
  • Password Complexity – Enable
  • Account Lockout Duration – 30 minutes
  • Account Lockout Threshold – 5 attempts
  • Reset Account Lockout Counter – 30 minutes

Edit the /etc/pam.d/common-password to define password policy parameters for your host.

Access Security

  • Ensure SSH version 2 is in use
  • Disable remote root logons
  • Enable AllowGroups to permitted Group names only
  • Allow access to valid devices only
  • Restrict the number of concurrent root sessions to 1 or 2 only

Edit sshd.config to define SSHD policy parameters for your host and /etc/hosts.allow and /etc/hosts.deny to control access. Use /etc/securetty to restrict root access to tty1 or tty1 and tty2 only.

Secure Boot Only

Remove options to boot from CD or USB devices and password protect the computer to prevent the BIOS options from being edited.

Password protect the /boot/grub/menu.lst file, then remove the rescue-mode boot entry.

Disable All Unnecessary Processes, Services and Daemons

Each system is unique so it is important to review which processes and services are unnecessary for your server to run your applications.

Assess your server by running the ps -ax command and see what is running currently.

Similarly, assess the startup status of all processes by running a chkconfig -list command.

Disable any unnecessary services using the sysv-rc-conf service-name off

Restrict Permissions on Sensitive Files and Folders to root Only

Ensure the following sensitive programs are root executable only

  • /etc/fstab
  • /etc/passwd
  • /bin/ping
  • /usr/bin/who
  • /usr/bin/w
  • /usr/bin/locate
  • /usr/bin/whereis
  • /sbin/ifconfig
  • /bin/nano
  • /usr/bin/vi
  • /usr/bin/which
  • /usr/bin/gcc
  • /usr/bin/make
  • /usr/bin/apt-get
  • /usr/bin/aptitude

Ensure the following folders are root access only

  • /etc
  • /usr/etc
  • /bin
  • /usr/bin
  • /sbin
  • /usr/sbin
  • /tmp
  • /var/tmp

Disable SUID and SGID Binaries

Identify SUID and SGID files on the system: find / \( -perm -4000 -o -perm -2000 \) -print.

Render these files safe by removing the SUID or SGID bits using chmod -s filename

You should also restrict access to all compilers on the system by adding them to a new ‘compilers’ group.

  • chgrp compilers *cc*
  • chgrp compilers *++*
  • chgrp compilers ld
  • chgrp compilers as

Once added to the group, restrict permissions using a chmod 750 compiler

Implement Regular/Real-Time FIM on Sensitive Folders and Files

File integrity should be monitored for all files and folders to ensure permissions and files do not change without approval.

Configure Auditing on the Linux Server

Ensure key security events are being audited and are forwarded to your syslog or SIEM server. Edit the syslog.conf file accordingly.

General Hardening of Kernel Variables

Edit the /etc/sysctl.conf file to set all kernel variables to secure settings in order to prevent spoofing, syn flood and DOS attacks.

PC Security Software

Are you trying to decide what kind of security program you need for your computer? Here are a few things to consider:

  • The quality of protection is important. Whether you need to protect a Windows PC or Mac, the program must be able to operate aggressively in order to fight against all emerging threats. New viruses, Trojan files, worms, spyware, etc. are coming out regularly – more advanced than ever before – so it is essential that the PC security software is effective in prevention and combating.
  • Usability is essential – especially if you’re not particularly computer-savvy. If an anti-virus solution requires you to have special skills just to keep up with day-to-day operation, it’s probably not investing in. It should feature advanced technology that allows it to do most tasks on its own.
  • Comprehensive protection is another factor that makes PC security software worth using. It should deliver protection for all types of files, computer domains, network elements, and so forth. All points of entry on the PC must be constantly scanned to ensure there are no dangerous files. This includes the internet, email, social media, FTP, shopping carts, and chat / messaging programs.
  • It’s vital to have password protection these days. Some hackers are sophisticated and will be able to see your password and obtain your login details. An Identify Safe password manager, such as the one offered by Norton, will help keep your login information safe from prying eyes and thieves.
  • People tend to prefer a computer security program that isn’t intrusive. Some are very annoying and pop up during the least convenient times. While you want the program to be comprehensive and protective in its protection, you don’t want it to annoy you with unnecessary pop-ups.
  • Price is a factor that many people consider important, but it shouldn’t be the sole criterion that you use in evaluating PC security software’s worth. Don’t be afraid to pay a bit more for the protection you need. There are always internet coupons and promo codes on various programs to help bring down the price.

Software Development for Non-Developers

The Groundwork

At this stage, your IT partner will ask questions about your goals and how your app will help achieve them. This is germane for arriving at the features of the app and its intended users. With these questions, the IT firm will identify existing apps with the same likeness as yours.

The IT firm should be keen on developing your app to do better than its competitors by becoming interested about the intended users of the app, their challenges and how the app will help them. The degree of success recorded could be based on the richness of your answers.

However, an experienced IT organization will create an awesome app regardless of the quality of information that you have provided. An experienced IT company has the ability to unravel challenges that may rise up during software development for non-developers.

The Design Stage

This stage demands the IT firm to be commitment, skilled and focused as they create the user interface and experience of your app. To guarantee the successful creation of the app of your dreams, you have to together with the IT company – your feedback is essential.

The IT firm must be able to develop your app using a suitable design pattern for efficiency and cost effectiveness. They must adopt the ideal data model, database and sophisticated user interface for the suitable platform for your app.

Note that software development for non-developers requires that you partner with a skilled IT company that can create a scalable app for future expansions. They must be able to create a measurable app, without irrelevant components, that helps monitor the manner of usage by users.

Seeing that all the requirements of this stage is met and the app prototype is created, you and your IT partner can move to the next stage.

The Development Stage

This is the stage where the app is subjected to series of tests and remodeling. Here, the IT firm will run tests to monitor the performance of the app and make adjustments if it falls short of expectations.

After tests and remodeling, the first version of the app will be launched. This version will render most of the services that you have in mind and may help you rake in some revenue. Still, the version will be closely monitored and maintained to suit the needs of its users.

Ionic vs React Native

On the contrary, hybrid apps are websites embedded in mobile apps via WebView. These are developed by HTML 5, CSS and JavaScript and execute the same code on different platforms. They can use the native features of the device with the help of tools such as PhoneGap and Cordova.

Before answering the question ionic or native react? Let’s have a look at these frameworks individually.

Ionic

Ionic framework was developed in 2015 by Drifty Co. software vendor for Apache Cordova. The main aim of this framework was to develop hybrid software whose performance was close to native solutions. Ionic is based on software like -SaSS, CSS, HTML and Angular 1.x. Ionic framework can boast an extremely advanced GUI and CLI, which can launch a variety of features.

Developers who are using this framework need not to employ third-party solutions, as it is perfectly integrated with software. It helps developers to create default mobile app UI functionalities in an easy way. Ionic framework is perfect for the statement write once, run everywhere. With ionic, you may not have to worry about platform-specific problems.

A hybrid app can run the same code, regardless of the platform. This is what Ionic can do. It can adapt few of its behaviors according to the platform. For example if you are using tabs, they will be displayed at the top of screen in Android and at the bottom of the screen in iOS.

Ionic is based on Angular, which is a JavaScript Framework and uses HTML for web views. As the views and logic are clearly separated, it is in-line with MVC pattern. You will be more familiar with Ionic as it uses classic HTML and CSS.

Ionic allow developers to preview the app in browser and mobile devices instantly. As you make changes to the app, the results can be seen just by refreshing the screen.

React Native

Facebook’s React Native has caused a great sensation in mobile pp development industry. It is a full-blown JS framework that allows developers to create cross-platform software that is similar to native applications. The best thing about React Native framework is that it uses native components for front-end and does not require employment of any browser, affecting the performance of the app in a positive way.

It is managed by a strong community of developers, who help beginners speed up development process. Any issues with React Native can be solved quickly, when discussed with many developers of the community. Developing a mobile app in React Native framework is done using JavaScript, and hence you can share the code across different platforms. However, React Native will use native components, which means the users experience will be closer to other native apps – giving better performance.

React native want the developers to use the components that follow the native behavior of the platform. For example you cannot use the same toolbar for both Android and iOS. With react Native, you can provide seamless experience to the users.

React Native is based on JavaScript framework known as React and uses code that resembles HTML. However, it is called as JSX – as the display logic is mixed with business logic. Though most of the developers feel at ease with JSX, the main problem arises when you work with a team of designers. Editing templates and writing CSS is not easy, as the rules of JSX are slightly different. Developers have to learn how to create the interfaces using JSX components, as it is entirely new.

React Native allows developers to see the modifications as soon as they make them without the need to recompile or rebuild. You will get the instant feedback without much effort.

React Native or Ionic: Which is better?

Mobile app developers often face problem, when it comes to choose right framework to develop mobile apps. Well, it depends on a number of factors like – user requirements, project, skills of the developers and many more. These both frameworks do different things and perform equally well. It is difficult to say, which framework is better than the other. Both these frameworks support Android and iOS. Both Ionic and React Native have healthy ecosystem, as they inherit the community they are based on.

If I have to give my personal opinion, I would recommend – React Native. The reason behind this is – apps in React Native are extremely fast and responsive. Though it is easier to learn Ionic than React Native, we must say that React Native provides a great programming environment that is closer to native app development.

If we see from the view of a developer, React Native provides a better solution and speeds up the process of app development without compromising the quality of your mobile app.

Tips for Android App Developers

Head to communities

If you have some doubts on your mind, don’t worry. You can head to online communities. On these forums, expert developers are always ready to give answers to important questions to help each other out.

Listen to your audience

For earning the trust and loyalty of your target audience, you may want to listen to them. Aside from this, it will make it easier for you to grow your number of users. Moreover, feedback from them will help you make necessary changes to your app for a better experience. Keep in mind that good work gets a lot of appreciation.

Grab a great idea

If you work independently, chances are that you will achieve success provided your app idea is revolutionary. But even if it’s not revolutionary, it should provide value with the users.

Learn to criticize your work

While it’s a good idea to believe in yourself, you may want to learn to criticize your products. Once you are done with an app, ask yourself why others should download and use it.

What should be your goal? Your goal should be to make an app that will solve a problem that many users have out there. By solving their problems, your app will make their lives easier. So, what you need to do is choose a niche that can help you provide the solutions you may have.

Develop a portfolio

If you want to attract more clients as a freelance app developer, know that you must have an awesome portfolio. Creating work samples is of utmost importance, especially if you are just starting out. As a matter of fact, we can’t deny the importance of having a great portfolio.

Understand the Market

It’s important for you to find out how the users of Android behave. Know that Android has a lot more users than its alternatives in the world, but they won’t pay as much as they users of iOS would pay.