What’s New in Angular 5 JavaScript Framework?

What’s New in Angular 5 JavaScript Framework

Finally, the wait for Google’s updated JavaScript framework is over. Angular 5 is finally launched. Google announced the good news on November 1, 2017.  But, planned support for progressive web apps and Material Design capabilities are not expected to ship until the last week of November 2017.

With the release of Angular 5, Google maintained its trend of launching a couple of updates in a single year. As a result, web and mobile developers have something to cheer for. The Angular 5 is swifter, compact and easier to use.

In 2012, Google launched the Angular JS and since then it has gotten better and more progressive. After 2012, this is the fourth upgrade since its initial launch, but the experts still believe that this upgrade is delayed as it has exceeded its previous launch dates (23rd October and 18th September).

Let’s have a look at its major features:

Material Design Elements More User-Friendly

To increase the user-friendliness, the material design elements have been developed with new technologies. There are a few issues that Google needs to sort out before it releases its functionality.

Progressive Web Applications

Google has concentrated more on making it easier to build progressive web applications. This will enable the applications to get concealed within the browser. Both Google and Mozilla have mutually worked together to include this valuable feature in Angular 5. At present, Google is likewise working on to offer help to make CLI capable.

Eliminating Unnecessary Codes

To include the next improvement in the latest framework, the size of the app has been decreased by removing unnecessary codes from it. The tool that helped in this regard is a CIL built optimizer.

Improving the Compiler

In this update, Complier – a fundamental part of the framework – has been improved. It is utilized for the transformation of TypeScript. It will help the incremental assembling better than anyone might have expected.

Pipes and Alteration in i18n Polyfills

With the release of Angular 5, we can eliminate the dependency on i18n polyfills as the browsers are even more standardized. This is because of the pipes for dates, universal numbers and currency. In case, you need to eliminate more polyfills, then you will require the help of Static Injector in place of Reflective Injector, which in reality is a substation in the new Angular framework. This will even make the applications compact.

Worth Reading [The Difference between Java and JavaScript]

Support for Sharing Codes

Keeping in mind the end goal to share the codes in the midst of the server and the client, the Google offers a support for DOM and Angular Universal State Transfer API.

Simple Migration for the Users

Angular 5 additionally makes it simpler for the clients to navigate effectively without making the changes due to the presence of various names assisting components.

Angular Forms

Here, the flexibility has been given to the developers to run validation and update the values on change, blur and submit rather than input every event.

Messages Incorporate Interpolations

In Angular 5, the messages from the app will now contain interpolations that will prove helpful for the translation work as it offers a hint on interpolations.

Refreshing the RxJS Reactive Programming Library

Google has likewise updated the version of the RxJS Reactive Programming Library on 5.5 2 or considerably higher which is loaded with a lot of additional features. The users can secure from the codes getting split and issues identified with the tree-shaking. The ECMAScript module assists the RxJS to circulate the adaptation.

The Router

Angular 5 provides the router with a few new events which incorporate ChildActivationStart and ChildActivationEnd. It helps in the tracking of individual activation routes. Presently, it is conceivable to reload a page even if the router has been made a request to browse the similar URL, which wasn’t possible earlier.

A few Cons Related to Angular 5

There are a few concerns related to Angular 5 which needs to be improved. The main issue is connected with the design of the production and creation of source maps. There are a couple of unidentified sources having an issue and furthermore, various APIs including Token or Opaque are currently eliminated.

Angular 6 is soon to come

Since Angular 5 has been released, Google has just started its preparation for the next release, i.e. Angular 6. As indicated by the experts if everything goes according to the scheduled plan, then you can expect it to release in March or April next year. It would have pretty much the comparable features of Angular 5.

Conclusion

Angular 5 is the latest version of the JavaScript Framework that will have more progressive web applications and it would be easy to operate it. But, from the end of developers, they would require the experience and knowledge for creating applications with the assistance of Angular 5. It has been loaded with many features that will permit the applications to work precisely and with a speed.

Top 5 Common WordPress Errors and the Solutions to Fix Them

Top 5 Common WordPress Errors and the Solutions to Fix Them

Fueling about 28% of the internet, WordPress is a prominent name in the web development realm. The foolproof CMS allows everyone to create a website virtually at record speed. And it doesn’t stop here! Thanks to its abundant number of plugins, there’s almost nothing that a user cannot accomplish through WordPress.

Despite its ease of use, there are some common WordPress errors that can panic you as a developer. The good thing is that the WordPress error you see on your site is most likely been reported and resolved by someone before you. The other features provided by the plugins can hide weighty flaws baring your website to errors and bugs which only ever show themselves at the worst possible moment.

Let’s take a look at some of the more common types of WordPress bugs and how to fix them:

1. The White Screen of Death

This is one of the most important errors a WordPress user can face. This can be due to multiple reasons, which is certainly not easy to pinpoint the source of the problem. However, the following points are believed to be the most common causes for the White Screen of Death.

• Plugin collision with active theme
• Plugin collision with another plugin
• Incompatible plugin with current version of WordPress
• Incompatible theme with latest revision of WordPress
• Plugin-theme collision: In many cases the theme might have some code that the plugin you most recently activated using; thereby causing a deadlock.

The Solution:

1. Resetting the WordPress Plugin Directory:

To reset the WordPress plugin directory, you must have the access to the WordPress installation folder. This can be done by using the FTP access, SSH, cPanel, or any web-server control panel’s file manager. For instance, Dreamhost and FatCow do not use cPanel, but have their own file manager.

• Rename the plugins directory to plugin-temp
• Create a fresh directory called plugins and change the permissions to 644
• Restart your web server if you have SSH access, are on a VPS or a dedicated server.

By following the above, all your previously activated themes will get deactivated and removed. You can now try logging into your WP dashboard. If it works, then you can start moving the plugins one by one, starting with the trustworthy ones and move forward.

2. Renaming the Active Theme:

When you rename a currently active theme, WordPress is unable to find it. It then looks in its default them. When found, it switches over to either of the themes and you might be able to access your dashboard once again.

Read Also: WordPress versus Drupal: Which CMS is better for you?

2. 500 Internal Server Error

The most certain cause of a 500 Internal Server error is a corrupt .htaccess file in the base/root directory of your WordPress installation. In 90% of the cases, the problem gets solved by deleting the .htaccess file and creating a new one. To delete the file, login to your WordPress root directory through FTP and rename the existing .htaccess file to something like .htaccess-corrupt. Then, immediately login to your WordPress dashboard and head over to the Permalinks option under the Settings. Select your preferred permalink option and Save the changes. Your WP site should work fine now.

There are other causes for the 500 Internal Server Error as well, but they vary quite much and are hard to pinpoint. Other troubleshooting methods include renaming the theme, resetting the plugin directory and replacing the WP-admin and WP-includes folders with fresh ones from the most recent WordPress-latest.zip file.

3. Error Establishing A Database Connection

This is one of the most common errors faced by WordPress Beginners. It is easier to fix as compared to the WSOD problem since we know the cause of the error.

The most common cause is the MySQL database access being incorrect. As a result, WordPress cannot connect to the database, thus, being unable to function. The other reasons include:

• The MySQL server is down
• The MySQL user does not have the apt permissions to modify the database.

The Solution:

• In case of incorrect login details, it is important and helpful to verify them.

• Make sure that your password is within single quotes. If your password happens to contain a single quote, then make sure that you enclose the password string with double quotes and vice-versa.

• If the MySQL user doesn’t have the required privileges, assign them using the MySQL Database option available inside the cPanel.

• If the MySQL server is down, try restarting it if you have SSH access. If not, contact your hosting provider.

4. Failed Automatic WordPress Update

At times, due to overloaded servers or connection issues, the automated WordPress installation gets interrupted and you are either left with tons of error messages or a WSOD. To resolve this, you can follow the manual upgrade steps and resolve the issue in no time.

• Download the latest version of WordPress and extract the contents in your system
• If possible, deactivate all the plugins
• Login to your WordPress root directory using FTP and swap the files in the base directory with the new ones in the extracted folder.
• Resultantly, delete the wp-admin and wp-includes directories
• Upload the freshly extracted wp-admin and wp-includes folders to your root directory
• Route to your wp-content directory present in the webserver via FTP
• Rename/ Replace/ overwrite the files inside this directory with the ones in the freshly extracted wp-content directory
• Never delete the wp-content directory in your webserver – or you might lose all your saved media

Worth Reading [What is Clean Code and Why it Matters?]

5. Error Establishing A Database Connection

This is one of the most common errors committed by the WordPress Beginners. It is easier to fix as compared to the WSOD problem, since we know the cause of the error.

The most common cause is: one of the MySQL database access details being incorrect. Resultantly, WordPress cannot connect to the database and thus, not functioning properly.

The MySQL server is down

The MySQL user does not have the appropriate amount of permission to modify the database.

The Solution:

In case of incorrect login details, verify them.

• Make sure your password is within single quotes. If you password happens to contain a single quote, make sure you enclose the password string with double quotes and vice-versa.
• If the MySQL server is down, try restarting it if you have SSH access. Else, contact your hosting provider
• If the MySQL user does not have the required privileges, assign them using the MySQL Database option available inside cPanel.

Final Words

The above mentioned are some of the most common WordPress errors faced by web developers. It is worth knowing that most of the PHP related errors such as maximum execution time exceeded, connection timed out, fatal error could indicate a poor web host, or one that is not properly set up to handle WordPress. It is recommended to consult the customer support or get in touch with a professional web application development company who can do these tasks for you.

Improve the Performance of your Web Application with Code Quality

Improve the Performance of your Web Application with Code Quality

There are numerous ways to implement code as there are proficient developers to implement it, which is one of the aspects that make software development a fun profession. This also means that there are many opinions about what makes a high-quality, virtuous software. What one developer values in regards of code quality can be poles apart than what other developers’ value?

A simple instance of this is a method written very efficiently, using a crisp syntax and a code in the minimum possible lines. While a code can be processed as high quality by one developer, it may be seen as concise and obscure by another, who prefers having a code laid in a more long winded yet easy structure.

This is why it is sensible to think about code in terms of the qualities, than trying a single definition of code quality. We can have a conversation about which qualities of code optimizations for a given situation only after recognizing, measuring and analyzing the various qualities of the code.

Meeting the Requirements

The foremost measure of quality to consider is if the code meets the requirements that initiated it to be written. The code needs to be articulated in the eyes of a developer; the one failing to accomplish the anticipated outcomes can be said to have low quality. The resulting software should not just realize the basic measure of fitness, but should also meet the needs of the customers.

The need to provide customer satisfaction is one reason that it is so hard to detach the quality of the end product from how it is created. A team that is closely associated with its customer and shows its work throughout the construction process is more likely to provide the customer with what it wants, than a team who holds on to show their work until all the structuring tasks are completed.

No doubts, softwares can meet customer requirements and still have poor quality. Billions of dollars are made by selling poorly crafted softwares that meet the needs of the end users’. This demonstrates that satisfying the requirements of the customers may require higher code quality, but there is a lot more to the quality than this single aspect.

Focusing on this minimum level of quality can cause problems as softwares need to change to meet the new requirements. Today, softwares grow when new customer requirements and desires are added and articulated into the code. Thus, the code must also reveal the quality of being easy to change.

If the software is difficult to change, it is considered to be high in technical debt. A code with higher technical debt has a greater cost of ownership because the changes take longer to implement and the risk of introducing new bugs while adding new features is also quite high.

Free from Deficiencies

A deficiency in a software context is a huge concept, because there are numerous aspects of a code that needs to be observed, measured, and assessed qualitatively.

Freedom from deficiencies in the code refers to healthy performing, non-functional necessities like readability, extensibility, maintainability, and innumerable other aspects. Since there are so many qualities of a code to consider, it quickly becomes a matter of determining the aspects to be optimized, and the ones to be monitored in a hostile way.

Reducing Time-to-Context

A code once written gets read repeatedly than it gets changed. In reality, reading a code in a given class is often done to gain relative insights into what another class is doing. The time a developer must spend to get sufficient context to make a change is an essential waste that can be referred to as time-to-context.

Creating a maintainable code is done to reduce the time-to-context for the code reader. Aspects that assure reductions in time-to-context consists of a clean split-up of all the concerns, ensuring each class having simple designs and responsibilities.

The Role of Analysis Tools

The code analysis tools can check for concerns like interoperability, performance, security, globalization, and must be a part of the software building process.

Regular running of a code analysis tool and evaluating its output is an inordinate way to improve as a developer, for the things wedged by the software rules can obviously add to your knowledge.

Wrapping Up

Measuring the code quality and maintaining it are two different aspects of software development. By focusing on these two aspects, any organization can develop reliable and robust software programs that streamline the work, thus improving productivity. If a business is by some means unsure about how to measure, develop, and manage the code quality, then it is prudent to trust the industry experts and leading web application development service providers who can develop clean codes that are capable of boosting performance.

The Difference between Java and JavaScript

The Difference between Java and JavaScript

People often assume that since JavaScript has Java in its name, they are related to each other. While other programmers groan at this coupling, many even feel that the name muddling is part of a marketing ploy. The history of the two programming languages did intersect for a brief moment in time during the early days of Netscape. The evolution of the two languages took such wildly different paths that the common joke is that Java is to JavaScript as ham is to hamburger. But if you are reading this, you probably are interested in a more useful explanation. So, let’s compare the two:

A few years ago, this would have been a simple comparison- Java being defined as a general purpose programming language, and JavaScript being used to make animated and interactive websites. But now that the JavaScript has grown up, the comparison has complicated.

Let’s take a look at some of their similarities and differences from a web development perspective:

1. Both Can Run on Servers

Java has long been a major workhouse of the web, with the application servers running a large share of the web applications seen by the users, both on the public websites and behind the corporate firewalls. While JavaScript has experimented in the server-side realm for a while now, the popularity of Node.js is triggering more JavaScript application servers to occur all over the place.

2. Both Can Run in a Browser

JavaScript runs on most of the modern browsers, and most websites take advantage of this to enhance their user experience. Java can also run in a browser, but have been declining in popularity for various reasons, including security and compatibility. It is reasonable to expect a web visitor to have JavaScript enabled and is common for a website visitor to have Java disabled, especially with the proliferation of mobile browsers.

3. Both Are Influenced by Programming Community

Java uses the Java Community Process to take input on what to embrace in the language in the form of Java Specification Requests. Oracle – the owner of Java- uses these to determine the official implementation of the language. JavaScript, on the flip side, is a derivative of the ECMAScript, which is defined by the European Computer Manufacturers Association (ECMA). Without such open processes, the programming languages have an inclination to become obsolete and more exclusive, thus creating vendor lock-in to a substandard product.

4. Both Have Libraries and Frameworks

Libraries and frameworks help the programmers by providing access to the general and purpose-specific codes that can be reused repeatedly for different products. When used properly, these libraries and frameworks can cut the development time- even by a very noteworthy factor. Both Java and JavaScript are mature enough to have a wide range of libraries and frameworks available to assist developers in a variety of scenarios.

5. Compiled vs. Interpreted

Making changes in the Java application environment can take a number of steps using a specific software to compile and deploy changes, while making changes to JavaScript can sometimes be done with just a simple text editor.

Java code is written in an Integrated Development Environment (IDE) and compiled into bytecodes. These bytecodes are not readable by humans and a Java Virtual Machine (JVM) is required to run it. JavaScript code, on the other hand, is executed by a JavaScript engine in the same syntax in which it is written, while the JavaScript files that are sent over the internet are often compacted to reduce their size.

6. Write-once, Run-anywhere vs. Branching Madness

Java is specially designed to enable developers to write a code once and deploy it to any operating system without making any alterations. Altogether, this does work as designed, although sometimes there are glitches depending on the JVM and the code used. While the JavaScript has a standard through ECMAScript, it is much more vulnerable to the differences in execution environments. While it is really frustrating for the developers to write JavaScript code for different environments, a silver lining that comes here is that the program itself can question the environment to select what branch of code to run in a specific environment.

7. Two-stage vs. Runtime-only Debugging

Java is compiled before being able to run, so if there are any structural problems with the code, they become apparent quickly. Once it starts running, the IDEs often enables the developer to attach to the JVM to debug in real-time. JavaScript is not compiled in the same way, so all the bugs are found in the runtime. Intrinsically, the debugging capabilities of JavaScript are highly reliant on the execution environment, which can vary quite a bit.

If this Java vs. JavaScript Faceoff isn’t enough for you, feel free to dip into the technical, performance-related, or popularity-based assessments. However, the important thing to remember is that they are not the same. So be vigilant while looking for a technical resource and make sure that they have the right experience with the right technology. Got more questions relating to web application development? Leave a comment below and we’d be happy to answer.