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Major Node.JS Pitfalls Committed by the Developers

Today Node.js has outclassed other web applications in the competition to establish as one of the optimum server based platform. It has been predominantly developed on the JavaScript Engine of the most popular web browser- Google Chrome, which is the V8 Engine. Node.js helps in establishing the two-way communication between the client and the server in real time so that the sharing of the files, documents and data becomes much simpler. One of the key factors that has made Node.js popular within the users is its swiftness to create scalable network applications. It is light-weighted and effective application that has non-blocking I/O model and can smoothly operate on a number of distributed devices. According to statistics, Node.js is used by 0.3% of all the websites. One of the other research shows that division in percentage on how the organizations are utilizing the benefits of the Node.js. According to that 39% is getting used for backend, 36% for full stack, 16% for front-end whereas the remaining 9% for others. With various advantages under its belt, Node.js is supposedly the preferred framework when it comes to development of complex applications. Although it is known for its simplicity, efficiency and reliability, however, still the developers need to have an insight on how to maximize its utility. The Common Node.js Mistakes Made by Developers During the building of the application, the developers commit some mistakes that can even lead to an entire project failure. So, it becomes important to know about the pitfalls in advance so as to remain alert and careful while developing application. Continuously Pressing for Call Backs One of the common mistakes often committed by the developers is implementing the callback function more than once. As such even today the JavaScript relies much on the process of the callbacks and it helps in connecting the asynchronous elements, thus making them to function appropriately. In fact, call backs are identified as one of the crucial aspects of Node.js and it also assists the developers to build APIs. So if the developer is going for the call back for more than one time, he creates the problem as it affects the functioning of the Node.js. It is important to get the value of the first call function. One of the best ways you can avert this mistake is add a return keyword before undertaking the call back task. It must be remembered that most of the tasks are asynchronous and so the return call back does not make any sense. Blocking of the Event Loop As a developer you need to know that an event loop is one of the vital tasks being carried out by the Node.js in developing the complex applications. However, the problem arises when the event loop gets blocked and as an outcome the user has to wait a longer period of time for navigating the app. In simple terms the connection with the server gets disrupted. The program functions on a single line and so you cannot run two applications at the same time. Therefore, if the event look gets obstructed then it will affect the entire program. Thus, it is not a worthy advice to pair the event loop with excess payload of JSON. parse with the intention of focusing on backend files. It becomes the responsibility of the developer to identify what type of common mistakes are getting along during the coding and should remove it, so that the application can run seamlessly. Nested Callback or Callback Hell If you properly analyze the common issues with Node.js, you would know that most of the problems are associated with callbacks and the callback hell or nested callback, whatever you may term it is one of the general mistakes. In fact, this particular problem persists in most of the application development programs. The concern usually originates because the development of the application is a complex process. It also becomes difficult to maintain the codes. But you can sort out this issue by writing simple functions that are easy to read and providing them suitable links. For instance, codes such as Generators, Promises etc. will be helpful and you can keep the codes error free. The developers who expect that the call back will operate serially shouldn’t get under this misconception as everything is not carried out synchronously. Therefore, it is suggested that the addition must be done instantly after the call back to ensure everything goes smoothly. Forgetting to Test and Inspect the Codes So, once an application development is complete it’s time for some more action as the developer has to mandatorily test and inspect the codes. Well, in order to carry out this work in a smooth manner, he can take the help of various tools, which remains at his disposal. A few examples of these would include Jasmine, Mocha etc. Mere testing of the framework is not considered adequate as he also needs to conduct an inspection on different features such as how much memory is being utilized and delay in the event loop etc. For the inspection purpose, the developers can take the support of viable tools including App Dynamics and New Relic. However, in case you are doing the manual coding, then it is recommended to add a few more programs to offer the robustness to the program. Developer is Unknown to Developing Tools Often it is seen that in case the developers are inexperienced and fresher into the application development field, he remains unknown to the developing tools. It has already been indicated earlier that Node.js helps in complicated application building and if the developer is not familiar with the basic modules he may face problems. The developer should know that if any change is done at the source, he has to restart and also he needs to refresh the browser when the static codes are getting modified and affecting the performance of the application. For restarting the server, you can use modules such as nodemon and for refreshing the nodemon

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Optimizing Website for Mobile? Here are the Mistakes You Should Avoid

With Google punching up to the new mobile-first index, you got to optimize your website for smartphone users. Having your website mobile friendly will determine its display on Google search results. The primary idea is to help users get what they need, in a smooth, seamless way. Due to the recent surge in mobile searches, Google tends to rank its search listings relying on the mobile version of the websites. Mobile traffic can bring a tremendous positive impact on your business. Better pull strings early on, instead of falling off the search grid, no? So, here are some mistakes that could turn off potential customers from your website. Do not use multiple URL – play responsive and singular Using different URL for desktop and mobile is only going to end up in customer confusion. Opt for a responsive website, built with a dynamic layout that adjusts according to the dimensions of any device. When the website outlook is uniform across all the devices accessed by the users, it is easier to use and helps improvise the user experience. A single URL for mobile and desktop would also mean you have only one website to worry about instead of maintaining multiple. Not enough mobile friendly? Potential customers expect to get what they need from mobile site easily and instantly. Conduct detailed research on the layout preferred by your audiences. Alternatively, you may run the Google Mobile-Friendly Test on your website. Check if it fits the guidelines. The test acts as a quick analysis tool that helps reevaluate the website and figure out what changes you need to make. The mobile version of your site should contain a display of readable text, integrated common software, links placed for quick tapping, and adjustable contents to ensure users don’t have to zoom. Co-ordination of research and input of viable content aid to enhance audience experience and they are likely to make the next visit. Cut down visitor annoyance – be swift Having a mobile website that takes ages to load is good for nothing. Make sure the load time of your website is as rapid as possible. Recent research provides that about 29% of the users will switch to another website if the ones they access are sluggish. A recent survey stated that 53% of the users left a website which took longer than 3 seconds to load. Quick downloading shall multiply your ad revenue and boost visibility by 25%. AirG Review say that visitor annoyance associated with the slow download is going to bring a website on lower ranks. It is vital to consider server response time, optimized images and browser caching. Slay monotony – Add up Rich Snippets Rich snippets are the additional chunks of information that help to improve website content. Displayed in the form of star ratings, author information, pricing, and images – these make your website authentic and interesting. Google prefers such content. With Google recommendations, you succeed in getting more clicks, more views. Indeed a dreary task, writing snippets shall bring phenomenal payback. Downplaying Important Calls to Action Ever struggled to find a CTA on a page because it was too cluttered with images, design elements, and detailed text? Mistakenly tapped another link or button close by? If yes, then you do relate how frustrating could that be. Getting a hold of the needs of mobile users is integral. They may be checking out your website on their way to the office or during meetings. They need an immediate response. Fixing every element from desktop site to mobile is not always the solution. Use action words to help the users navigate through your site. Design CTAs that make them reach their desired spot right away. Scrolling through navigation renders to divert their attention. Place CTAs in the thumb zone – the spot that is easiest for the thumb to reach. Non-playable content hits bad At times, videos or gif images are not playable on smartphones. Mobile devices do not always support the content that asks for Flash player or the license constrained media. Users can be irritated when such features within your content do not work. Unsupported formats might make them switch to an alternate webpage. For videos, try HTML5 standard tags rather than adding the unsupportive formats. If there is a transcript with the video, it would be a cherry on the top. It will make your site accessible to people who work with browsers that cannot play a proprietary video format. As for the animations, quit Flash and use HTML5 animations that function across all browsers. Conclusion Mobile web surfing is growing at a rapid pace. Every recommendation from Google should be your top-most priority. Go an extra mile and make a move by Google’s ranking preferences. Remember that your mobile site has to be easy and enjoyable for the users. Your visitors could easily leave your web page if it annoys them or takes a lot of time to load. If you do not optimize well for mobile, users will fail to complete your forms, your shopping carts shall stay lined up empty, and people will turn towards your competitor to accomplish their needs. The landing page should be furnished with relevant CTAs, web content should be responsive, useless video/animation should be removed and loading time should be based on 5 seconds at max. Cut loose from the mistakes you are making and witness your web traffic grow leaps and bounds. Blog Source- https://www.mindinventory.com/blog/optimizing-website-for-mobile-here-are-the-mistakes-you-should-avoid/

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10 Common Mistakes That Angular Developers Commit

While using the Angular JavaScript platform, developers often commit some mistakes. They get to know about using this platform, the ways of optimizing an app and the ways of enhancing their code also. While developing an app on the Angular platform, they review codes and try to enhance their expertise if they find any backlog. While reading and reviewing code and code examples online, you can find that Angular developers often do some mistakes. Be it’s about a newbie or an expert developer with many years of experience; anybody can make mistakes in the code. Everyone must learn from his/her mistakes and the same goes for a developer too. There are some common mistakes that Angular developers usually commit. You need to narrow down the list of possible mistakes which these developers commit. Common Mistakes Made by Angular Developers So, what are the common pitfalls which Angular developers do while developing apps? Have you ever made such mistakes? Let’s look at some common mistakes made by Angular developers and how they can abstain from them. We will discuss them in brief and will help you understand how you can solve them. Failing to Unsubscribe Being a part of the team of Angular developers, you cannot just give an excuse of ignoring or failing to unsubscribe. In Angular, you need to clean up your subscriptions. Once you have completed using an observable or an event in JavaScript, consider that there are many libraries and strategies built exactly for dealing with these acts of unsubscribing. Since constant subscription leads to memory leaks in a system, this unskillfulness risk develops and becomes a huge problem. When it comes to unsubscribing, two basic scenarios are seen: You initiate the OnDestroy lifecycle hook in case it is in your subscribed component. You prompt the lifecycle hook on your own in case it is a service which you have previously subscribed in. In a nutshell, when you do not use a component or a service anymore, do not forget to unsubscribe it. Not Organizing Codes Appropriately In Angular, one of the key parts of coding is to organizing your codes. Usually, you must have a Controller for a View while working with MVC. Since this controller is your principle layer and you should make compact compartments inside this rationale layer for every area of your apps. Putting extra concept into a single controller is a common mistake. In case you need to compartmentalize your layer for your app for making sense, never go for substitute ways. Instead, create smaller organized units for the logic layer. So, this is proved that separating code is one of the most important parts of app development. Initially, you will not find it much vital but when your development team will work on this project, it will become simpler to perform, find pitfalls, and build each and every smaller part. A precisely compartmentalized code helps make an app flexible enough for creation that helps as your company develops gradually. Involving in the jQuery To deal with events and make alterations to the DOM more easily, developers use jQuery which is a customary library. On the other hand, the Angular platform is utilized for developing scalable apps, app testing, app building and thereby, you can’t use it in building up the HTML documents. Angular framework boasts plenty of features; thereby, a developer needs to have an idea about all accessible features prior to engaging jQuery in the app building. In fact, In case you need to alter DOM, you don’t have to compulsorily use jQuery. Making Changes to the DOM Directly Sometimes making direct changes to the DOM or from the controller itself appears to be one of the most common mistakes committed by Angular developers. Since altering the DOM is a common job while using the JavaScript platform: You possibly have to refresh the title of the page depending on a context change. You possibly have to execute SVG You possibly have to concentrate on control after a validation error And this list of possibilities goes on. When you find these possible situations while using the platform, you opt for the easy way to escape and finally manipulate the DOM directly. In order to prevent yourself from altering the DOM directly, use jQuery, a global document object or ElementRef.nativeElement. Otherwise, you can utilize the Renderer2 service. All in all, you need to resist yourself from making changes to the DOM directly. Acknowledging the Same Component in Multiple NgModule Acknowledging a component in many NgModules is one of the most common mistakes done by the Angular developers. In an Angular app, a component is the basic building element. Each component should be acknowledged in a NgModule for being available to viewers. You need to list a component in the @NgModule.declarations array to particularize that it’s a member of a NgModule. Hence, being an Angular developer, you should acknowledge every component in its own NgModule. If you want to announce a similar component in different modules, you will have to take the connection between those modules into account. In case this is a parent-child connection, then: Utilize the NgModule.declaration of the child for acknowledging the HeroComponent in the child module. Next, utilize the NgModule.exports array of the child for exporting that HeroComponent. Finally, utilize the NgModule.imports array of the parent for importing the child module. In case it is not regarding a parent-child module connection, you will have to acknowledge another NgModule as the shared information’s module. Failing to Examine Overlooking to examine an app prior to launching it is a common pitfall of the Angular developers as they do not realize the matter that bugs can be launched by many environments. You don’t have to obtain an environment with each OS; instead, you need to examine your app with the use of well-known cross-browser testing tools. Settled Scope Binding Usually, the Angular framework possesses its own scoping principles. For instance, the easy application of data sources restricted to a model can

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Mistakes to Avoid When Hiring an App Developer

In this digital age, mobile apps are nothing new to users. It is the way they are developed that matters. Hence, it has become essential to come up with the best, most detailed, creative, artistic, fun, informative, yet easily structured app. As an everyday user of different apps, we know what we are looking for when using that app. And, if that app is not able to provide you with what is required, then you switch to a different one. Well, that is why it is a difficult task to build such an app that is perfect overall. However, it is also essential to provide the clients with whatever they want through your app. So, here comes an App developer to the rescue! An app developer is a person who makes and maintains the app for you. This has to be a person with all the technical geeky knowledge. Importance of an App Developer As mentioned before, the app developer is responsible for making and maintaining the app. Without this person, you will have no app. Or if you make the app one way or the other, there will be no conversion rate. The app will not be up to the mark. The reason is that the app developer makes sure that the app is interesting for the audiences. The app appeals to the people and attracts masses only if a proper app developer is there to create it and fix it. This is the reason why an app developer gets 70% of the sales of the app. Few Mistakes to Avoid When Hiring an App Developer When hiring an offshore app developer, companies often make a few common mistakes that turn up against them only. However, you can avoid such mistakes if you read this blog. Looking for them only near you Well, there is an ancient perception that it is safe to look for employees, especially remote basis employees, only near you. This is just a myth. In reality, it gives you more dimensions to look for when you have not limited your search. A vast area has more talent. Thus, discovering can be helpful. Companies often make this mistake that they only look for app developers that are inside some feet or yards. What they must do is that they should not make choices on the basis of the locality. Instead, looking everywhere is the solution. Pro tip: The possibilities are endless, just don’t limit your search to a specific region. Unable to update the app Businesses face this most commonly, when app developers are employed, they are unable to upgrade the app. They do not understand that with time, there is always a change required, and thus, the app should be updated after every few months. This may include providing better services, usage, packages with the app. However, this mistake of not being able to update an app from time to time can bring your app down. Therefore, the chosen remote app developer should be able to maintain the app timely. Hence, you should hire those remote developers only who are capable of updating the app timely. Pro tip: Always hire a remote app developer that update your app on time. Not checking testimonials A background check of the credentials of the app developer is always necessary, when hiring an offshore developer. When hiring, companies usually make this mistake of not investigating too much into the employee. They only look into the services they are willing to offer, and based on that, they directly give them the job. This is a big problem in offshore hiring. They are only asked for basic credentials such as name, age, or qualification. Plus, it is difficult to verify their testimonials, and hence, wrong people are selected. For that reason, no matter how much time or energy it consumes, but you should try first to check every single information they provide you. Pro tip: Investigate about your offshore developer. Check the testimonials then take the hiring decision. Not being able to deliver on every platform When hiring a remote developer, companies often forget to make sure that they have to provide the application on every platform. Therefore, an app developer who knows nothing about this detail is hired. Keeping that in mind, they end up making the mistake of hiring people that are not able to do so. By delivering on every platform, such as Android, iOS, and others, more users use the app. If the offshore app developer is capable of bringing it on every platform, you can surely hire them. Pro tip: Hire an offshore developer that is able to deliver on every platform. Not making sure to interview Just like checking the credential of the offshore developer is a critical aspect of the hiring process. Similarly, an interview over Skype or Slack is also essential. You may know everything about the developer in a verified writing form, but you can still miss some important information there. Only when you personally converse with the employee, you will understand the dynamics of their work and attitude. Hence, it would help if you did not omit the fact that you have to interview the developer before hiring them. It does not matter how it is possible, through a call or personally, but hiring the developer requires a good scheduled interview. Pro tip: Do not forget to arrange a virtual interview with your chosen remote developer. Inexperienced or lack of experience Experience plays a vital role in the corporate world. Whether it is a marketing team, finance team, HR, or any other employee of the company, it is essential to make sure that they have some experience in work. It may not be possible to do so every time, so even if the employee is experienced knowledge-wise, you can consider that. Although, your first step should always be to look for experienced remote developers, who have already dealt with lots of complexities in technical apps. However, if you are not

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6 Mistakes to Avoid When Creating a React Native App

Apps have taken over our lives. As per Statista, so far, over 204 billion apps have been downloaded in 2019. It comes as no surprise that the app industry is thriving, and many speculate that it will continue reaping high profits in the future as well! As more and more people adopt smartphones and hence apps, the industry has become quite a lucrative opportunity for new business owners. Many wish to make it big in the sector by developing the best app out of the lot. But, app development is easier said than done! The first decision you will have to make as a developer is which programming tool to use to create a smooth and glitch-free app. One option you might consider is to use React Native. Why React Native? React Native is a mobile app development framework that is developed by Facebook. It is an open-source platform that was launched in 2015. Compared to all other cross platform app development frameworks, React Native has proven to be a favorite of many developers. This is because it allows developers to create an excellent quality app for both iOS and Android at the same time! Here are some common benefits associated with React Native: It uses JavaScript which almost every developer knows inside and out The React Native Framework has a very straightforward installation process The live reload feature of the platform allows for a speedy app development It is a cross-platform, thereby allowing developers to create solutions that can be adapted to Android, iOS, VR devices, smart TVs, etc. Mistakes to Avoid When Developing React Native App Here are six of the most common mistakes an app developer can make when developing an app using React Native. Incorrect estimations about the process One thing many developers forget is that the layout of the Android and iOS version is quite different. Yes, React Native does allow you to use various components interchangeably for the two platforms. However, specific elements are not usable. For instance, the structure of the application page of the two platforms is different on the two platforms. Additionally, during the initial days of programming your app via React Native, it is easy to underestimate the number of codes you will have to write. This arises because generally when you create a hybrid app on platforms like Cordova, you are required to write fewer codes. This incorrect estimation, when creating a React Native app, can end up causing a lot of hassle to the coder. Improper planning of redux store Redux is a handy tool that helps in the effective management of an application. It also allows you to store data gathered by the app properly. Generally, Redux is used for managing larger and heavier applications. React Native does make use of Redux. However, you must plan it properly to avoid issues. More using Redux can also increase the amount of workload. While this may seem understandable for big apps and projects, it is not suited for small projects. Why? This is because Redux requires you to write long, complex codes for the smallest of changes. So, if you are creating a React Native App for a small scale app, it is best not to use Redux. It will generate a lot of problems and inconveniences for you. Not reading all codes extracted from external modules App development is undoubtedly a time-consuming and complicated process. Understandably, many wish to reduce their hassle as much as possible. One common way developers achieve this is by using external modules during the app development process. Since external modules tend to come with documentation and already have completely formed codes, it increases the pace of the app development process. However, one mistake developers make when using external modules is not reading all the codes that it consists of. A lot of times, when you add an external module to your codes, it might break or not perform the function you meant for it to perform. This can end up increasing your workload rather than reducing it. This is why it is highly advised that developers read each and every code. This will allow them to identify any errors that are present within the code and hence solve in before applying it to their app. Not conducting unit testing Not writing a testing unit is by far the most common and easiest mistake to make when creating a React Native App. This is because the developed app can still work regardless of whether you write testing units or not. But, it is a gamble where you only find the result once you put your app out for the world to download and judge. Rather than leaving your app’s fate at the mercy of users, it is better to test its functionality and ensure its perfection before you launch it in the market. This is where a unit test comes in handy. A unit test allows you to assess the various parts and features of your applications independently. This will enable you to guarantee that each function works as expected. By writing a unit test during the development stage of your app, you can know of the bugs in your app. This means you don’t have to waste time tracking the source of glitch later on. Leaving Log Statements in the app When developing a React Native app, a developer might use console log statements. This helps in debugging the app and ensuring that it is glitch-free during the app executive stage. But, you must remove the log statement before proceeding. Often, developers forget to remove the console log statements. This can lead to a severe issue. This especially happens when your app contains both render methods as well as logics. If so, the console log statement can end up becoming a bottleneck for the JavaScript thread. In turn, it leads to a lagging and slow performing application. Leaving React Native Images un-optimized While many developers may not consider optimizing the React Native

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