AngularJS development has been used to build many renowned and heavy traffic websites such as Gmail, Google, Paypal, Netflix, Virgin America, and many more. It is based on the MVC model (Model View Controller) and is a great framework to develop Single Page Web apps.

AngularJS can handle DOM and AJAX on its own instead of coding them and is the major benefit of using this framework. It also provides various tools for developers to deliver modular building blocks by mix match and test code. The developers can also add an HTML page just by using a few simple tags.

Though Angular provides superfast performance by default, while designing complex and realistic applications, it shows some problems and affects the performance of your application. The reason for such a suspicious performance can arise by not following best practices by the team of developers.

As a result, it requires to optimize AngularJS applications that can tackle the threat over its performance. So, now we will learn some tips to optimize AngularJS performance to get the best performing application. But before that, let’s know more about AngularJS development.

Source: Britwise Website

What is AngularJS?

AngularJS is a structured, open-source JavaScript framework used for building dynamic single-page applications. It is a web framework that uses code templates written in HTML to carry-out a particular command or function. It was developed in 2009 by ‘Misko Hevery’ at Brat Tech LLC. Now, it is maintained by Google.

AngularJS has data binding and dependency functionality, which saves time from writing lengthy codes. All such features are packaged in a browser and make it the most suitable server technology.

There is a hands-on difference between a Static document and a Dynamic Application. Therefore, the Dynamic Application usually prefers libraries and a framework that supports the development of web apps. At the same time, the library held a number of functions that are used to perform specific operations. These frameworks automatically fetch the data and call the relevant function when required. AngularJS can create new HTML constructs that, in the end, eliminate this mismatch effectively. Hence, it creates new syntax with the help of these directives.

Concepts of AngularJS

AngularJS framework works on the following terminologies or concepts in web app development.

1. Modules

Modules are defined as a container that collects or holds various parts of an application. Basically, a Module is a set of functions defined in the JavaScript file. A module is very useful and works perfectly in dividing an application into small and reusable components.

2. Expressions

The Expressions in AngularJS are expressed with {{ }}, and it indicates the data binding in HTML. Such expressions are added to the HTML templates. However, the Expressions do not support control flow statements while supporting the filters.

3. Directives

Directives indicate the compiler to relate a behavior with the DOM element or modify it. AngularJS framework has several directives such as ng-if, ng-view, ng-app, ng-controller, etc.

4. Controller

The Controller is a JavaScript object constructor function. Basically, it controls the AngularJS web or mobile applications.

5. Scope

A Scope is a JavaScript object that acts as a bridge between the View and the Controller. Overall, it is the source of data in AngularJS. With the help of the Scope object, each assignment and data manipulation takes place.

6. Validations

Validation takes place with the help of AngularJS controls and forms.

7. Data Binding

Data Binding coordinates to view and model about any changes in any of these two.

8. Services

Services are the singletons that are used by controllers, directives, and other services.

9. Filters

Filters allow you to display the data formatting on DOM, and it also extends the behavior of directives and binding expressions. These filters format the values or apply them specifically.

10. Dependency Injection

Dependency Injection is a designed pattern that is used to handle dependencies of numerous components of the software. It also allows the loosely-structured architecture development.

11. Routing

The service of $routeProvider manages all the operations of Routing. It effectively divides the map into multiple views. Routing helps to split the Single Page Applications into different views.

12. Testing

The codes are getting tested, which are developed by the Dependency Injections. Whereas some of the popular testing frameworks are Jasmine and Karma, these two are the majorly used technologies among AngularJS developers.

Advantages of AngularJS

• It is quite easy to work on and learn the AngularJS With a few simple modifications, you can achieve the benefits of AngularJS in minimum time.
• AngularJS allows two-way data binding, enabling view and model to coordinate with the changes among one another.
• With AngularJS, the developers don’t have to go with observable functions. It automatically analyzes the DOM and creates the binding on the basis of Angular-specific element attributes. This saves developers time from writing lengthy codes.
• Most of the framework requires the developer to divide the application into multiple small components or MVC components and then write codes to join these components. Whereas AngularJS is capable of solving this issue easily, as it combines the components automatically.

Disadvantages of AngularJS

• The AngularJS applications are not safe. Such applications require server-side authentication, and it is necessary to maintain the security of the application.
• If the application user disables the JavaScript, then in the application, nothing gets displayed except the basic page.
• Sometimes, AngularJS becomes quite complex to handle it. As there are multiple ways to perform the same task, and it results in confusion. Hence, it requires considerable effort to manage a task.

Source: Sevenstar Websolutions

Tips to Optimize AngularJS Performance

There are many built-in tools to optimize AngularJS, but the performance issue still shows pores in the framework. While working with AngularJS, if you don’t have a massive infrastructure like Google, then you need to implement some preventive measures or the best practices to optimize AngularJS performance to boost the application.

Before heading towards the tips to optimize AngularJS, it is suggested to always look for the room of improvement to boost performance despite the feeling that you don’t need that. So, here are the following few tips to speed-up or optimize your AngularJS apps.

1. Carefully Observe your Digest Cycle to Optimize AngularJS

The digest cycle is considered as the best indicator of AngularJS applications performance. It is a cycle that works on a loop to check and monitor the changes in the variables. Hence, as much shorter the digest cycle is, the faster your application will run.

It will definitely boost the performance of the application and deliver good results from the customers. A fair performing application will automatically attract more users and give a boost in the market.

2. Limit your Watchers to Optimize AngularJS

Implement data-binding at any time, and with this, you can create more $$watchers and $scopes, which will extend the digest cycle. Too many $$watchers can increase lag time, therefore prefer limited use of it or avoid using it as much as possible.

As we learned in the above point, the small digest cycle will result in an optimized AngularJS performance. Hence, make sure to limit your watchers and prevent long digest cycles.

3. Limited DOM Access

The access of DOM is quite expensive, so try to maintain the DOM tree smaller. If it is possible, then don’t try to modify the DOM and don’t set an inline style to avoid the reflow of JavaScript.

Limited DOM access can optimize AngularJS performance and minimize the expenses too.

4. Use ‘scope.$evalAsync’ to Optimize AngularJS

While the digest cycle is already running and you try to activate it manually, then you are going to get an error. Therefore, to prevent yourself from this situation use “scope.$evalAsync” instead of $apply, to initiate the digest cycle manually.

This code queues up the operation to be executed at the end of the current cycle without setting off the new or current one. It will save you from getting errors and increase the lag time of the digest cycle.

5. Use the Chrome DevTools Timeline and Profiler

Chrome’s both the DevTools Timeline and Profiler can help find bottleneck situations and perform a guide to optimize efforts. Both the tools work effectively to optimize AngularJS application or web performance.

Chrome DevTools or Chrome Developer Tools are web authoring and debugging built into the browser. It provides access to web browsers and applications to the developers for deeper access. These tools allow developers to perform numerous tasks ranging from testing the viewport on the mobile device to editing the website or even measure the performance of any individual asset or the whole website.

6. Use Lodash to Optimize AngularJS

The Lodash tool in AngularJS allows developers to quickly write application’s logic to improve the built-in AngularJS methods and enhance the application’s performance. However, suppose the Lodash tool is not used in the already existing web application to optimize its performance. In that case, the developers can rewrite the method on their own by using native JavaScript.

This tool allows developers to optimize AngularJS web application performance apart from that they can write the method on their own to do so. It is a very effective tool for AngularJS development.

7. Disable CSS Class and Comment Directives

While creating a directive, the developers can assign it to be used as an attribute, element, comments, or CSS class. However, if you don’t require comment directives and CSS class, it can disable them to boost the AngularJS application’s performance and optimize AngularJS performance.

8. Prefer using One-Time Binding only

In the latest version, i.e., Angular 4.0, this feature is not available. However, if you are using older versions than this, then you may be able to take advantage of on-time binding.

So, to implement or exercise this feature, just add a double colon before the value. If it is done correctly, the value will get resolved once and disappear from the watchers list. This feature was first introduced in the version of AngularJS 1.3, and is not available in the latest 4.0 version.

9. Disable Data Debugging

The Batarang and Protractor tools depend on the data binding and scopes with which AngularJS attaches to DOM elements. Therefore, after finishing debugging, try to disable the extra data so that it doesn’t drag the application performance.

Disabling the data debugging optimizes AngularJS performance and increases the performance of the web application.

10. Avoid ‘ng-repeat’ to Optimize AngularJS Development

Excess use of ‘ng-repeat’ directive can drastically affect the overall performance of the web application. However, to minimize its effect, there are alternatives too. For Example,  instead of using ‘ng-repeat’ to render the global navigation, the developer’s can build their own by using the ‘$interpolate’. It is a provider to render the template against an object before converting it into a DOM node.

11. Use ‘ng-if’ or ‘ng-switch’ instead of ‘ng-show’

The directive ‘ng-show’ simply toggles the CSS display on or off for a specified element.

To remove an element from the DOM, the developers must use ‘ng-if’ or ‘ng-switch’. It is another brilliant tip to optimize AngularJS web applications.

12. Use ‘$cacheFactory’ to Optimize AngularJS

If you need to store the data that might be required to be calculated after a period of time, then prefer using the ‘$cacheFactory’ directive. It is quite similar and works like any other memoization method.

13. Use ‘console.time’

While facing any issue in debugging, ‘console.time’ tool in Chrome DevTools is a wonderful option or tool for calculating the execution time and other performance benchmarks.

It is a brilliant and very helpful tool in managing issues while debugging and calculating different performance benchmarks to optimize AngularJS development.

14. Use $filter to Optimize AngularJS

AngularJS development in a web app runs the DOM filter twice during each digest cycle. In the first DOM filter run, it detects changes, and in the second run, it updates the values that have changed. However, to save time in this whole cycle process, the $filter provider allows pre-process data before it is sent to the View and, after that skip the DOM parsing process.

It is a great tool to optimize the speed of the web application and the AngularJS development process to save time and improve application overall efficiency.

15. Use ‘$watchCollection’

While using $watchCollection, only two parameters are a great choice, but three or more than three parameters are like a crowd. The addition of a third parameter forces AngularJS to go through a deep checking and results in the requirement of a lot of resources in use.

The developers can include excellent work with having around the ‘$watchCollection’. It works as a third parameter for $watch. Despite that, it checks the first layer of each object’s properties, so that it won’t slow down the overall speed and performance of the AngularJS web applications.

16. Debounce ‘ng-model’

Debouncing inputs by using directive ‘ng-model’ can play a vital role in limiting the digest cycle.

For Example, implementing ng-model-options=”{debounce:200}” can ensure that the digest cycle doesn’t run more than once in every 20ms. It is a great tool to limit the digest cycle and ultimately optimize the performance of the AngularJS development.

17. Rigid Scoping

Try to keep all your variables scoped tightly. With this, JavaScript garbage collectors will free up the memory that is getting occupied uselessly and in a frequent manner to fasten the process. It will help provide the required resources to the upcoming processes and speed up the application’s working. It is a very easy and common way to optimize AngularJS performance.

18. Infinite Scrolling or Pagination

It is a very effective and brilliant optimization strategy as if everything fails; then it will work. You can minimize the number of looped elements by implementing the Infinite Scrolling or Pagination technique. To serve this purpose, AngularJS has a directive called ‘ngInfiniteScroll’.

19. Use Pure Pipes to Optimize AngularJS

AngularJS uses pipes to display model values on the UI in a little different format. For example, ‘date | shortdate’. Here, the shortdate filter will convert date objects in the small format like ‘DD/MM/YYYY’. Pipes are used to slice and dice the data for display purposes. The Pipes are categorized into two parts, i.e., “Impure Pipe” and “Pure Pipe”.

The difference between Pure and Impure Pipe is that Impure Pipe can deliver multiple output for a similar input over time. However, the Pure Pipes means a function that can produce similar output for the same input data.

AngularJS has some inbuilt pipes, and all of them are pure in nature. Therefore, when it is preferred to binding evaluation, each time Angular evaluates an expression and then applies the pipe over it (if exists).

AngularJS Performance and Testing Tools

It is always possible and efficient to adopt best practices from the initial phase instead of going back and implementing changes. Before starting coding, plan carefully about how to limit bindings, expensive directives like ng-repeat, and watchers. Apart from that, there are multiple tools that help to optimize AngularJS performance and are good testing tools.

1. Protractor

Protractor is a very powerful and automated end-to-end Angular Testing Tool. The Angular team developed this powerful tool. Protractor is built with the combination of some brilliant technologies such as Selenium, NodeJS, Jasmine, Mocha, Cucumber, and webDriver.

It allows running automated end-to-end testing with an ease. The combination of technologies boasts all the features. With this, developers can use the Selenium grid feature to run simultaneously on multiple browsers. However, by using Jasmine and Mocha, you can write your own test suites.

2. WebdriverIO

WebdriverIO tool allows controlling a browser or a mobile application only with a few lines of code. It makes the test code look simple, concise, and easy to read. This integrated test runner allows developers to write asynchronous commands in a synchronous manner. Due to which, the developers don’t have to care about how to avoid the racing conditions. As well as it also takes away all the complicated setup work and manages the Selenium session.

3. TestingWhiz

TestingWhiz is one of the most user-friendly test automation tools to optimize AngularJS because of its codeless scripting feature. This tool offers an end-to-end testing solution to test the AngularJS web and mobile applications. Its codeless scripting feature makes this tool popular, especially among the non-programmers.

Conclusion

As we have witnessed, Web Development is changing rapidly due to the introduction of new technologies and updates in the JavaScript frameworks. Hence, to gain maximum benefits from these frameworks, being a developer, you must keep optimizing the application performance on a regular basis. By optimizing AngularJS performance, the developers are also able to get more with less coding.

Source: RawPixel Website

If you plan to build a product on AngularJS development or like to optimize AngularJS performance, then the multiple ways can be followed. However, to build such a product and get the best services, you can easily reach EngineerBabu, and we all assure you to provide the best services. Hire AngularJS Developers without any hesitation as, we have a qualified and experienced team of developers to deliver the best. For any further assistance and query, you can contact us, and we assure you to provide the best result and solution for your business.

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Evidently, almost one-third of the development fraternity depends on AngularJS development. It is because this framework can effectively fulfill all the modern-days requirements that a web-app needs to engage end-users.

When it comes to hiring AngularJS Developers, the views of enterprises vary in terms of hiring Offshore AngularJS Developers or In-House AngularJS Developers. Due to different experiences with these developers, the companies built their perceptions and used to support that firmly. Therefore, many companies used to praise and promote hiring offshore AngularJS Developers, while others disagree due to horrible working experiences.

The enterprises have mixed reviews over hiring offshore AngularJS Developers or In-house AngularJS Developers. If you are also looking for the answer about whom to hire, then let’s dig deeper and learn that offshore hiring is better or in-house for AngularJS Developers.

Source: RawPixel Website

What is an Offshore Software Developer?

Offshore Software Developer is a person or an agency outsourced to a third party software agency or company. Such developers or agencies are very well-equipped in Web Development, Web App Development, Mobile App Development, etc. It is typically a method where the developers or an agency work with a foreign company to provide the project development based on company requirements.

The Offshore Developers can be hired in different ways-

• Hiring an Individual Developer or an Agency.
• Developing the whole project or specific parts/features of the project.
• Hiring a dedicated team of developers for a particular project.

There are thousands of companies all over the world that provide the services of offshore developers. But getting a reliable offshore developers company or agency is a difficult task. You can easily look for numerous options through references, but analyzing their working style and structure is primary.

Look for the best option and decide which offshore agency model best fits your project, define your requirements and analyze how it would ideally provide the services on that value. Being an offshore developer, ensure to maintain the quality and timely delivery of the project. It will be a great boost for you and get good references from your clients and other projects to work upon from the same client in the future.

Everyone craves for good assistance and quality and timely work. Therefore,  be professional in your work to fulfill the clients’ requirements and properly communicate each little progress in the project to your client.

Source: Rootinfosolutions Website

Pros of Hiring Offshore AngularJS Developers

1. Cost-Effective

Hiring offshore AngularJS Developers is way cheaper than hiring a team of individual specialized developers. Companies used to always look for saving expenses over project development and increase their revenue. Hence, it is very evident that in different parts of the world, the expenses on development or developers is very much variable.

Therefore, going for the offshore AngularJS Developers for your project will prove to be a feasible and budget-friendly call. It will save your money and time that you can utilize on other important matters to improve and grow your business. It is one of the biggest reasons why companies prefer hiring offshore AngularJS Developers instead of in-house AngularJS Developers.

2. Experienced Developers

Angular is considered as one of the most complex front-end frameworks. Therefore, to deliver the best results, it is very important to have an expert team of AngularJS Developers by your side. To make it possible with hiring in-house AngularJS developers may burn a massive hole in your budget pocket. As, owning a dedicated developers team and experienced team will definitely leave a big blow to your budget.

Hence, to attain the level of expertise in terms of AngularJS Developers, it would be convenient for you as a company to go for hiring offshore AngularJS Developers rather than hiring in-house AngularJS Developers. The offshore agencies can provide you with a highly skilled and experienced team of AngularJS developers. Such developers are well-versed in designing engaging UI using Angular libraries.

Overall, when you look for hiring offshore AngularJS Developers, you can assure yourself that there won’t be any compromise with the quality of product development at any phase.

3. Implement Advanced Technologies

The offshore AngularJS Developers are very effective and expert in their art. As the outsourcing industry is highly competitive because thousands of companies are working worldwide to provide such services. Hence, serving the client better and implementing advanced technologies will only allow such companies to survive fierce competition, secure projects, and fulfill clients demands.

The in-house developers can not effectively work and concentrate on a single project over a period of time. As a result, the quality and the implementation of new technologies in product development gets compromised. However, the offshore AngularJS Developers dedicated work on a single project and always focused on regularly updating their learnings and grabbing advanced technologies.

It would be a great and positive step to opt for hiring offshore AngularJS Developers and agencies who have expertise in the latest front-end technologies such as .NET, Node.JS, TypeScript, etc. These technologies allow developers to deliver cutting edge web solutions to their clients which gives them a boost in the competitive market of AngularJS developers.

4. Quick Product Deployment

In this competitive world, excellent and rapid product deployment is also necessary to present yourself. Every day we can see the deployment of new web pages. Hence it becomes crucial to fasten the development and deployment process to gain the market from the competitors.

The quick deployment of products will help your company to quickly grab the attention of potential customers and gain a competitive edge at the same time. Therefore, to achieve this, hiring offshore AngularJS Developers to a third-party agency is one of the easiest and quickest ways to boost the overall development process.

5. Risk Mitigation

The minimum risk associated with project development is highly ignored by the companies who offshore AngularJS developers, but it is one of the most significant advantages for companies. There are different types of risks associated with project development: Budget risks, Schedule risks, Technical risks, Operational risks, and External risks.

The offshore hiring procedure is always secured and bound under specific terms and conditions by legal contracts through mutual consent. It includes the scope of work and other important aspects such as,, time duration of delivery, payment clause, confidentiality clause, performance clause, exit clause, and other conditions based on both parties requirements.

Hiring offshore AngularJS Developers instead of hiring in-house AngularJS Developers, is not only about handing responsibilities to other companies and developers, but it is also more about collaborating and sharing the risks and benefits involved in the project.

6. Hiring Offshore Developers is Flexible

Hiring offshore AngularJS Developers is much more efficient and flexible than hiring in-house AngularJS Developers. Especially when you have a single web application to work over it.

Evidently, when you look for hiring in-house AngularJS Developers to build the best quality product, it may cost you a lot in terms of money and time. While hiring in-house AngularJS Developers teams, as a company, you would have to pay extra for recruiting and retaining developers, additional office space, and other technical resources to develop the product from basics.

Hence, hiring offshore AngularJS developers would be very much economical and time saver for you. For this, you only require to pay pre-decided fixed development rates, no additional or hidden expenses need to be made. So, hiring offshore AngularJS Developers requires no additional maintenance cost. Instead, it helps you to cut down your developmental costs by a margin.

7. Easy to meet the Deadlines

Hiring offshore AngularJS Developers and agencies will make sure to deliver the project on time. As they are fully-focused and dedicated towards the single project. However, the in-house AngularJS Developers might get busy with other tasks, which may lead to delay in meeting deadlines.

So, offshore AngularJS Developers will be an effective option to meet the project deadlines and maintain quality.

8. Outplace your Competitors

Being an initiator or first one in the market, to introduce any new product or service is always a great advantage in the competitive market. Therefore, if hiring offshore AngularJS Developers or agencies can provide you a better chance of introducing your product in the market, then do so.

There is no need to invest your precious product development time in looking for hiring in-house AngularJS Developers. This won’t be considered as an intelligent or feasible call as a company. Therefore, to beat your competitors, if there is any chance, then no need to waste your time, just go for hiring offshore AngularJS Developers and be the king of the market by beating your competitors.

9. Develop a Better Strategy

Building a good product doesn’t always reach a wider audience; it also requires a good strategy to introduce and promote the product in the market. 

A team of good marketers and developers can easily help develop such a market approach in project development. Building a perfect application and enhanced strategies can lead to improving the company’s efficiency and profits.

10. Enhance the quality of Product with Experts

By hiring offshore AngularJS Developers, the companies can enhance the quality of their product or project. Such developers are experts in their field.

These offshore developers/agencies will take the responsibility to deliver good product in the given time frame.

Source: Morioh Website

How to choose the best Offshore AngularJS Developers or Company?

Hiring offshore AngularJS Developers can offer several benefits, but it owns some challenges with it as well. Most of the business doesn’t opt for hiring offshore AngularJS Developers. Because it is quite a tedious and risky approach to find the good, genuine, and right AngularJS Developers or Agencies.

However, to choose the best offshore AngularJS Developers, there are few tips and approaches that can be followed. Such developers can help to build the best quality of product development for your target audiences.

1. Analyze your Requirements

Before getting into the hiring approach, it is very important to analyze your requirements as a company and the target audience. Make sure to develop a clear project view, aim, and what you want as the final product. What special features and technology would you like to integrate into the product? What type of interface do you wish to provide to your audiences? Who is your target audience or market?

 Providing a clear objective will definitely help them to build an excellent project. It will also support them to meet the needs in a precise manner.

2. Do a Proper Market Research

Research requires a proper amount of time and lots of effort. So that you can look for accurate and supporting information for your project. In this respect, google can be a great help in every situation. Therefore, it is always a better idea to start your search for AngularJS developers and such agencies with a basic google search initially.

We all know how to search for anything on google. It is very easy, just google your requirements. Now, i Now it solely depends upon you to analyze the results.

You need to look for all the search results and compare each agency based on their previous works and the client’s review. If you are entirely sure about the details on the website and multiple in-person communications, then only go for the agency or the developers ahead in the project development process.

3. Check the Developers or Company Portfolio

The company’s or developer’s portfolio will provide you the detailed information. About its existence, expertise, working style, and many other required details. The well-formed and updated portfolio of a company or the developer will give an exact glimpse of their previous working and about the projects. Looking into your prospect’s previous projects will make it easier for you to identify the capabilities of such projects in terms of meeting the deadlines and the project demand.

4. Look for Previous Client Reviews

After analyzing the profiles and sorting the best appropriate profile for you, now it is a bit more challenging to conclude over a few specific names. Therefore, don’t forget to go through the previous client reviews. It will be a great help in making decisions to select the appropriate agency or developer.

Hiring offshore AngularJS developers requires a lot of hard work. After analyzing the previous works and the clients. It will help to conclude over apt agency or developer who can deliver you the project and fulfill your requirements.

5. Directly Contact with the Project Managers

The client can directly contact our project managers and convey their needs. Then, there will be a thorough discussion between the client and the project manager. According to it, the final decision will be taken.

You can briefly share your requirements and get their response; whether they are capable of finishing the project with quality and timely delivery along with your other required conditions or not.

Why Hiring Offshore AngularJS Developers from EngineerBabu?

Source: RawPixel Website

EngineerBabu offers more than 9 years of experience working in web development and app development. A portfolio of delivering more than 2500 projects successfully in a budget-friendly environment.

Our experienced developers can deliver high-quality solution to the clients. We ensure the timely delivery of projects at minimal costs.

Our clients can reach us in various ways and can carry out work effectively while being at any part of the globe. The whole team is very focused and dedicated in fulfilling our client’s requirements. Not only the dedicated AngularJS developers, but also all the specialized developers are highly skilled, experienced, and dedicated towards their work. 

Developers are experts in meeting deadlines and are always available and ready to provide last-time or instant changes as well. The team is always ready to work with our clients therefore, the developers are always on their toes. To ensure the best possible solution and customer experience to our clients. For any query or discussion you can contact us.

Conclusion

While hiring offshore AngularJS Developers, it is very crucial to decide and choose the appropriate agency. Therefore, always look for the agencies and developers in detail. The project you are working upon, and looking to hire AngularJS developers or any expert developer, consider all the pros and cons in the account. With third-party hiring, you can definitely improve the quality of the product and benefit your business as a whole.

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