Apple’s iOS and Google’s Android have effectively cornered the mobile market, leaving businesses with no other option but to cater to both operating systems.Creating separate apps for each platform can be costly, especially considering the steep pricing of native app development. The expense of building an app for iOS alone can reach tens of thousands of dollars. Add the cost of developing an Android app, and the financial burden becomes significant.

Advantages for E-Commerce Enterprises

Conversely, a PWA is underpinned by basic web technologies. Once developed, it runs flawlessly on any device, regardless of the operating system. Furthermore, a PWA is almost indistinguishable from a native app, complete with a home screen and offline functionality. This is a much more cost-efficient approach than building two separate apps. 

#2: Streamlined and Efficient Installation Process for User

Setting up a native app on a device can be a lengthy and complex process. Moreover, developers must adhere to stringent criteria when submitting their apps to Google Play or the App Store.In contrast, acquiring a PWA is straightforward. Users access a PWA via a browser by simply typing its URL, just like any regular website. They don’t have to visit an app store, locate the app, and navigate through multiple steps to install it. This user-friendliness encourages more users to remain on your site.

Advantages for E-Commerce Enterprises

Since a URL is all that’s needed to access a PWA, it can be easily shared, drawing more potential customers to your e-commerce store in a short time.

#3: Maintain Customer Engagement with Push Notifications

To reiterate, PWAs are essentially websites harnessing the power of native mobile apps. One such power is the use of push notifications to stay in touch with your customers or potential clients once they’ve installed your app on their devices.

Advantages for E-Commerce Enterprises

With a PWA’s icon on the home screen, a push notification serves as a subtle reminder of your brand, even if the device owner decides not to open your message.Push notifications act as a potent sales/advertising tool, particularly for e-commerce enterprises. Some estimates suggest that over half of PWA users enable push notifications.

#4: Enhance Your Customers’ Trust with PWAs’ Robust Security Measures

Security is paramount for any e-commerce enterprise. With cybercriminals constantly on the prowl for sensitive user data, PWAs offer a solid line of defense by defaulting to the https protocol. This encrypts all user data in transit, denying cybercriminals access to their targets.Beyond https, PWAs also leverage Web Bluetooth technology for an added layer of protection.

Advantages for E-Commerce Enterprises

When customers are assured of absolute security and the protection of their financial and personal data, they gain confidence and are more likely to become repeat customers.

#5: Enable Offline Browsing of Your Catalogs to Site Visitors

A distinguishing feature of progressive web applications beneficial for e-commerce is their capability to present product pages even when users are offline.This is a distinct advantage over standard websites, which typically display a ‘not found’ page when online access is unavailable. Offline browsing is facilitated through service workers, which cache previously viewed content, making it available at any time.

Advantages for E-Commerce Enterprises

Offline browsing of an e-commerce site helps retain customers, who can continue browsing products for future purchases when they regain online access. This is especially valuable in regions with unstable Internet connectivity or slow network speeds.

#6: Enhance User Experience with PWAs’ Rapid Loading Speed

Speed and optimal performance are critical attributes of an e-commerce website. With numerous alternatives available, no customer wants to wait for your store to load.Once installed, a progressive web app can operate as quickly, if not quicker, than most apps found in an app store. This is due to a highly efficient caching mechanism that serves pages locally instead of fetching them from remote servers.

Advantages for E-Commerce Enterprises

It’s simple. A fast, seamless e-commerce website is more likely to attract and retain customers, regardless of how they access it. This, in turn, should positively impact sales figures.

#7: Enable Search Engines to Discover Your PWA as They Would a Typical Website

In the competitive e-commerce landscape, where different solutions are aggressively competing for the top spot in search results, it’s essential to make your site discoverable to web crawlers. Unlike traditional iOS or Android apps that keep their data hidden, PWAs mimic the features of standard websites, pulling data from databases.Therefore, search engines like Google don’t overlook PWAs when indexing their pages. All that’s required is to implement optimal SEO strategies, just as you would with a regular website.

Advantages for E-Commerce Enterprises

Users get to experience a potent mix: superior performance and speed akin to what iOS and Android apps offer, coupled with the search engine visibility typical of websites. This makes your store more discoverable to potential customers, leading to higher conversion rates.

Conclusion

Progressive Web Apps (PWAs) present a compelling and highly advantageous solution for e-commerce businesses. They offer a smooth and easy installation process, allow for customer engagement through push notifications, and prioritize robust security measures to protect sensitive user data.Additionally, PWAs enable offline browsing of product catalogs, deliver rapid loading speeds for an enhanced user experience, and can be readily discovered by search engines due to their similarity to regular websites. With all these advantages, it’s clear that PWAs are transforming the e-commerce landscape, providing a seamless blend of website-like accessibility and app-like performance, all the while boosting customer confidence and conversion rates.

The post Get Ahead of Your E-Commerce Competitors with Progressive Web Apps appeared first on CL-TryJ.

We’ve noticed that QA specialists are often brought into the project later than desired. If the software testing process starts only after the first build of the application is ready, there is the potential for errors to have occurred during the technical requirements and specifications stage. Fixing mistakes afterward is always more complicated, which is why it’s important to implement the following initial steps as part of your testing strategy to save time and money.

1. Device models and OS versions

Once you’ve identified your project idea, business logic, and target users, you should decide which mobile devices and OS versions to make your mobile app compatible with. These same devices should be the ones you test on.

To figure out the best mobile devices for your app, consider the following questions: what devices are most popular in the location you plan to launch your app in? If you have a website, which mobile devices are used most often to access it? What devices are most popular among your target audience? What versions of Android and iOS are necessary for the business logic of the project? Lastly, what versions of Android and iOS are the most widely used around the world at the moment?

Resources such as Apple and Google distribution dashboard, Device Atlas, and Statcounter can be used to help answer these questions.

After you have made your decisions, the mobile devices and OS you have chosen will have an impact on the functional requirements, application design, and the devices and OS used for software testing. It is wise to select at least three to five reference devices for each platform with varying screen aspect ratios, DPIs, and OS versions.

2. Specification and design prototype testing

After the technical specifications are finalized, it is critical to involve a QA specialist. If the design is also ready, it is all the more essential to have one at this stage. Testing the specification and design prototype will enable you to detect bugs prior to them becoming embedded in the mobile app.

The QA specialist will be able to spot any incompleteness in descriptions, ambiguous language, contradictions, and imprecisions. Testing the prototype design will help to eliminate any disparity in the technical specification and can help to uncover any issues with the user experience.

This approach will prevent any potential issues down the road and save the team valuable time while keeping you on budget.

Test Planning

The project has been given the ultimate approved specifications and design; the project management methodology, which typically decides the suitable software testing technique, has also been decided. Consequently, the next stages of development can now take place. Nonetheless, prior to starting with testing, a few more critical steps must be taken.

The test plan is an integral part of any quality assurance process, providing testing specialists with the necessary information to ensure a successful product launch. It includes the following main components:

1. Project Overview: This section should contain introductory information about the project, including its target audience, the parts of the project that are subject to testing, and a description of all parts of the project.
2. Links to the Main Project Documents: This includes links to project space, technical specifications, design source files, a list of test logins and passwords, test checklists, test scenarios and test cases.
3. Necessary Equipment: This should include a list of device models and OS versions that the application should support, as well as considerations for using emulators.
4. Interaction with Other Applications or Devices: If the mobile application involves integration with other apps or devices, the QA should be familiar with the details of how integration testing will be performed.
5. Testing Team: This section should include a team of testers and the role of each member, as well as an intro meeting with the team to discuss roles, plans, tasks and expectations of all project participants.
6. Project Space and Bug Tracking Tools: This should include the list of systems and tools used on the project, such as ADB, Crashlytics, Postman, Instabug.
7. Testing Start and Finish: This should contain the criteria and deadlines for testing if the release date is fixed, as well as any dates for private demonstrations during the development process.

Testing a mobile application is a complex process and takes effort from the entire team. You can modify the steps of the testing process for each project. However, do not forget to adhere to the 10 steps mentioned above. This will guarantee a successful outcome with a high-quality mobile application.

The post Your Step-by-Step Mobile Application Testing Process appeared first on CL-TryJ.

Web scraping is a technique used to extract data from websites. It involves writing scripts to extract specific pieces of information from HTML or XML documents, such as webpages and APIs. This data can be used for various purposes like analytics, research, and more. The process itself requires a certain level of programming knowledge to scrape the desired content effectively. With JavaScript, developers are able to create scripts that allow them to conduct web scraping activities with ease.

Definition of Web Scraping & Data Extraction

Web scraping is the process of using code or special software tools to extract text-based content from websites or other sources on the internet. As an example, if you wanted to collect all product prices across multiple eCommerce sites without having to visit each website separately manually, you could use web scraping techniques instead. This extracted data can then be stored in CSV files or databases for further analysis and processing tasks like price comparison and predictions etc.

Data extraction refers specifically to methods used for extracting structured data (usually in tabular format) from unstructured sources such as HTML pages or PDFs — formats where there’s no easy way out-of-the box way of getting structured tables out directly from them automatically. For this reason, many manual processes may need custom coding when dealing with these types of documents as part of the extraction process, which makes it slightly more complex than traditional web scraping approaches.

Understanding the Different Types of Programs Used for Web Scraping & Data Extraction in JavaScript

When it comes down to actually implementing your own web scraper using javascript, there are usually two main routes one might take depending on what type of program they wish their scraper run within: browser-based programs vs. server-side programs. In both cases, Javascript will be at the core, but depending on what type of program you want your script running inside, different libraries/frameworks may need to be added into mix too, so let’s explore each option below:

Browser-Based Programs – Browser-based programs typically involve leveraging client-side technologies like HTML / CSS / js, which runs most often within browsers themselves (think Chrome, Firefox, etc.). Here we can use things like JQuery + vanilla JS along with DOM manipulation techniques combined with XPath selectors & regex patterns, among other things — all provided by modern browsers today — making it possible to build our own very powerful scrapers even though sometimes tricky debug!

Server-Side Programs – On the flipside, we also have server-side implementations available via nodeJS, which allows us to access underlying filesystem + network operations while also allowing us to execute system commands through our script, something not possible through pure client-side methodologies mentioned earlier. We don’t necessarily have the same easy access HTML elements here (although still doable), but much easier to implement some really advanced stuff compared before by doing things asyncronously while taking advantage of multiple CPU cores (in case the machine has’em) among other goodies!

Exploring How JavaScript Interacts with a Website’s HTML & CSS Structure

Building an effective web scraper requires an understanding of how websites are structured. In particular, knowledge of the underlying HTML (HyperText Markup Language) and CSS (Cascading Style Sheets) elements that make up a page is essential to scrape it effectively.

JavaScript works together with these elements, allowing developers to interact with them in various ways, such as manipulating their content or styling. Understanding how this process works is key for crafting effective scripts for web scraping. For example, using JavaScript’s document object model (DOM), developers can navigate through the hierarchical structure of a webpage and extract specific pieces of data from it. Additionally, they can use XPath selectors and regex patterns to target even more precisely the desired information on each page they wish to scrape.

Ultimately, being able to craft powerful scrapers via javascript opens up lots of possibilities when it comes down to collecting data online while also giving us great control over exactly what we want to parse out any given website!

Why JavaScript is the Ideal Language for Web Scraping Projects

One key reason why JavaScript is so well suited to web scraping tasks is its flexibility. As one of the most popular scripting languages, JS can be used to build automation scripts that are tailored to your particular needs and goals. Its wide range of libraries also means you have access to various ready-made tools that can make your job much easier too. Additionally, as a dynamic language, JS allows you to modify existing code quickly and easily in response to changing requirements or conditions – something which makes it especially useful when dealing with large amounts of data or complex sites with many different elements on them at once.

Reasons why JS Is a Powerful Programming Language For Extracting Information from Websites

JavaScript provides several advantages over traditional coding languages when it comes to collecting data online:

Speed: With its lightweight syntax, Javascript enables quick development cycles without sacrificing performance; this makes it ideal for rapidly prototyping applications while still providing reliable results every time they run. Additionally, since there’s no need for compilation (which can add considerable overhead), scripts written in JS tend to execute faster than those written using other coding languages like Java or C++

Accessibility: Unlike some more advanced scripting languages, which may require specialized software or hardware setups before they can be used effectively, nearly anyone can begin writing basic programs in JS within minutes, thanks to its intuitive nature and widespread support across multiple platforms (such as browsers). This makes learning how to use and apply Javascript relatively simple, even if you don’t have any prior programming experience!

Scalability & Flexibility: While many modern coding languages offer scalability options (allowing developers to create applications that expand as needed over time), none do so quite like Javascript does – due mainly thanks to its modular architecture, which allows functions/modules created elsewhere easily be imported into new projects without needing extensive modifications first; making growth potential virtually limitless regardless how complex things get!

Ease of Use: Javascript provides a simple syntax that makes it easy to learn and understand. Even those without prior coding experience can quickly get up-to-speed with basic script commands so they can start scraping the web right away. Additionally, there are many tutorials available online that provide guidance on how to write effective scripts for any project size or complexity level.

Cross-Platform Compatibility: JavaScript runs on all major operating systems, including Windows, Mac OS X, Linux, and even mobile devices like tablets and smartphones, meaning your scripts will always be compatible regardless of where they’re deployed – something essential if you plan on using them on different browsers or platforms at once during your extraction projects! This also makes sharing code between users much less complicated since everyone should be able to run your programs no matter what device they’re accessing them from without issue.

The Benefits of Using JavaScript for Web Scraping & Data Analysis

Automation through javascript has become increasingly important in today’s digital age – enabling businesses to extract value from their datasets faster than ever before by leveraging pre-built components rather than having manually code everything themselves each time they want to perform analysis/scrape content off websites, etc.

Here are some additional benefits associated with using javascript automated processes instead of manual methods whenever possible:

• Efficiency Gains: By automating tedious tasks such as retyping data from one source to another each time changes occur (or need updating), businesses can save countless hours otherwise spent doing mundane work freeing up resources to focus on more valuable activities instead, thus improving overall productivity levels significantly!
• Lower Costs (& Higher Profits): Not only will automation increase efficiency, but it will also reduce costs associated with labor-related expenses, thereby increasing profits margins substantially over a long-term basis too… All these savings are then reinvested back into business operations, further strengthening competitiveness edge against competitors’ marketspace alike!
• Improved Accuracy & Reliability: Manual entry errors often plague organizations due to lack of oversight during inputting process; however, automated systems eliminate human error almost entirely, ensuring accuracy and reliability remain consistently high at all times– resulting in improved customer satisfaction ratings, better decision-making capabilities throughout organization itself, ultimately leading greater success moving forward future endeavors likewise.

How to Get Started with Web Scraping in JavaScript

Now that you understand the basics of web scraping and how JavaScript interacts with websites, it’s time to start. Before you dive into your project, there are a few things you need to know about getting started with web scraping in JavaScript.

Setting Up Your Environment for Development

Before getting started with web scraping in JavaScript, you must first set up your environment for development. This includes installing any necessary software, such as a code editor or an integrated development environment (IDE). You will also need to install Node.js, which is a popular runtime environment used by many developers when creating applications using Javascript. Once you have installed all the necessary software, then you can begin writing your code to start compiling data from websites through web scraping methods.

Learning the Basics Of Working With APIs, Libraries, And Frameworks

Once you have set up your environment for development, then it’s time to start learning about different types of programs used for web scraping & data extraction in JavaScript, including APIs, libraries, and frameworks such as Puppeteer, Cheerio, and Axios, which are some of the most commonly used tools when working with JS on projects related to web scraping. It is important that you understand these concepts before continuing so that you can create efficient programs quickly and easily while avoiding common mistakes made by inexperienced developers who do not take their time to understand how each program works before attempting more complex tasks like extracting large amounts of data from multiple websites at once.

Finding Useful Tutorials And Resources On The Internet

In addition to understanding the fundamentals mentioned above, another essential step towards success when starting out with Web Scraping in JavaScript is finding helpful tutorials & resources online that provide detailed instructions on how exactly certain tasks should be completed using specific programming languages/frameworks/libraries, etc.

Depending on what type of project someone wants to undertake, there may be dozens or even hundreds of tutorials available online created by experienced professionals who know exactly what they are doing, making them ideal sources for beginners or those looking to brush up their skills quickly without spending too much time researching themselves individually trying figure things out themselves!

What Are Some Popular Tools & Services For Easy & Automatic web scraping In JavaScript?

As a JavaScript developer, you have a plethora of options when it comes to tools and services that can help you perform web scraping and data extraction. In this section, we will introduce you to some of the most popular and widely used ones.

Cheerio.js

Cheerio is a fast & efficient open-source library designed specifically for web scraping with NodeJS (JavaScript runtime). It provides developers with an intuitive API that enables them to parse HTML documents without having to write complex DOM manipulation code by hand. By leveraging jQuery-like syntax within your codebase, you can easily traverse HTML elements on a page and extract valuable information from them using XPath selectors or CSS selectors like class names and IDs, etc. This makes it incredibly simple to get started with basic web scraping tasks right away!

Puppeteer

Puppeteer is another powerful library developed by Google that allows you to run headless Chrome instances within your own NodeJs application so as to perform automated browser tests or scrape dynamic content from pages powered by frameworks such as React or AngularJS etc. The beauty of Puppeteer lies in its ability to control the user interface directly through its API rather than relying on external programs/packages like Selenium WebDriver (which requires additional setup). This enables developers who are familiar with modern front-end development techniques (HTML5/CSS3) to create powerful automation scripts much faster than before!

Axios

Axios is yet another great option when it comes to fetching remote resources over HTTP(s). It uses promises instead callbacks which makes coding more intuitive – enabling users to make asynchronous requests without getting bogged down by callback hell As well as providing support for advanced features such as headers management; caching; authentication; compression etc., Axios also provides error handling capabilities allowing users to handle server response errors gracefully too!

Request

Request has long been hailed as ‘the Swiss Army knife’ when it comes making HTTP requests via NodeJs applications – whether they be simple GETs/POSTs or complex streaming operations involving file uploading/downloading etc. Unlike other libraries mentioned above, though; Request was built mainly with compatibility in mind – meaning that even if your target website uses outmoded technologies such as legacy versions of PHP or JavaServer Pages (JSP); chances are that you should still be able to use Request successfully

Nightmare.js

Nightmare.js gives developers access to real browsers running behind the scenes – including full support of Chrome’s DevTools Protocol (CDP) so that they can automate interactions across multiple tab windows at once! Even better, since everything runs locally, there’s no need to worry about dealing with pesky cross-domain issues either All these features combined make Nightmare.js the perfect choice for those looking to create sophisticated end-to-end testing scenarios where reliability is critical.

Scrape-It.Cloud

Scrape-It.Cloud is a web scraping API for efficiently extracting data from websites. It offers features such as automatic IP rotation and CAPTCHA solving to handle the challenges associated with web scraping, so developers can focus on data extraction. With a simple API request, the HTML response can be easily parsed using the preferred parsing library. Customization options include the ability to send custom headers/cookies, set the user agent, and choose a preferred proxy location.

Tips & Tricks On How To Avoid Getting Blocked While Web Scraping In JS

Web scraping is a powerful tool for data extraction and analysis. However, it can also be risky if you don’t take the necessary precautions to ensure that your web scraper isn’t blocked or detected by the website’s security systems. Here are some tips and tricks to help you stay safe while web scraping in JavaScript:

• Use proxy servers – Proxy servers allow you to rotate your IP address so that websites can’t detect and block your requests. This makes it much harder for them to determine who is behind the requests.
• Set up user-agent strings – User-agent strings are used by websites to identify different types of devices accessing their content, such as desktop computers, mobile phones, tablets, etc. You should set up a custom user-agent string based on the device type that most closely matches what you’ll be using for your web scraping projects with JavaScript.
• Utilize headless browsers – Headless browsers are automated programs that behave just like regular browsers (such as Chrome or Firefox) but without any visual interface or window being opened on the screen. They’re incredibly useful when it comes to avoiding detection from websites’ security systems since they simulate how humans would interact with a website more accurately than other web scraping methods in JavaScript.
• Make sure not to send too many requests at once or too frequently – If you make too many requests within a short period of time, then this will likely trigger an alarm in the website’s security system which could lead them blocking your access altogether (or temporarily). Try setting up timers between each request, so there is a sufficient time gap between each one sent out from your script/program.

Conclusion

The conclusion of this comprehensive guide to web scraping in JavaScript is that it is a powerful tool for extracting data from websites and can be used with great success. From setting up the environment to learning the basics and finding useful resources, we have covered all aspects of web scraping in JavaScript. We have also gone through some of the popular tools and services for easy web scraping, as well as some tips & tricks on how to avoid getting blocked while doing so.

With all this knowledge at hand, you are now equipped with everything you need to know about web scraping with JavaScript. Whether you’re a beginner or an experienced developer looking for ways to improve your current project, I hope this guide has provided you with valuable insights into the world of web scraping using JavaScript!

The post A Comprehensive Guide to Web Scraping in JavaScript: What You Need to Know appeared first on CL-TryJ.

I got interested in programming in high school, so I went to university, majoring in computer science and management.

After graduation, I found a job in my specialty – in a small company. I was a web-programmer and was mainly engaged in filling the site with content in a team with a content manager, a backend programmer and a frontend programmer. Occasionally I was given tasks to do layout or pull templates on WordPress. There was some work with JavaScript, mostly with JQuery. But I wanted to do full-fledged web development even then.

As time passed, I began to take on more complicated tasks and realized that I lacked the knowledge to complete them. After some more time Vue, Nuxt and React were among technologies I used.

Within three months of learning frontend I had significantly changed my approach to development and was able to undertake not just complex tasks, but the full implementation of the frontend part of the entire project. As a result I managed to get away from filling sites and move to full-fledged frontend development.

This profession, even though I did not go through it to the end, helped me a lot to understand how to program properly in the first place. In this blog I want to share my experience and knowledge with you.

The post About appeared first on CL-TryJ.