IT industry insights in the category Frontend
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WebAssembly: Revolution in the World of Frontend
WebAssembly (Wasm) is a new and promising technology that is reshaping the landscape of web frontend. This innovative binary file format is gaining popularity, allowing the execution of low-level code directly in web browsers. With WebAssembly, websites become even more efficient and faster, opening the door to incredible possibilities in web application development. WebAssembly - What Is It and How Does It Work? WebAssembly is a standardized binary file format that can be executed in web browsers alongside traditional languages such as HTML, CSS, and JavaScript. It was created as a collaborative effort of international organizations, including the World Wide Web Consortium (W3C), to provide browsers with the capability to execute highly efficient low-level code. WebAssembly is a low-level language that allows developers to create more efficient web applications. It is understandable to browsers, which means that code written in WebAssembly is compiled and executed efficiently, resulting in significantly shorter loading times and improved web application performance. Advantages of WebAssembly The future of WebAssembly looks promising for several reasons. Here are some key advantages of this technology: Performance: Due to the low-level nature of WebAssembly, web applications run faster and smoother. This will undoubtedly speed up the loading process of web pages and enhance user interaction responsiveness. Cross-Platform Compatibility: WebAssembly is independent of the operating system and browser, making it work on various platforms, including desktop computers, mobile devices, and the Internet of Things (IoT). Scalability: This technology enables the expansion and enhancement of existing web applications, which is crucial for the future development of web projects. Security: WebAssembly operates in a controlled browser environment, isolated from the resources of the operating system, resulting in a higher level of security. The future of WebAssembly has the potential to transform the way we build web applications. It is a tool that allows developers to create more advanced applications that can compete with traditional desktop applications in terms of performance and functionality. In the following parts of this article, we will learn more about practical applications of WebAssembly and the challenges this technology may face in the future. Practical Applications of WebAssembly WebAssembly has a wide range of applications and can be used in various fields. One of its most popular applications is accelerating the execution of applications and games in web browsers. Thanks to the ability to run low-level code in browsers, online games run exceptionally smoothly without the need for additional plugins. WebAssembly is also used in educational applications, data processing tools, and even multimedia editing applications. This allows developers to create more advanced tools and applications that work on different platforms without the need to write multiple versions of source code. Challenges Ahead for WebAssembly Despite the promising future of WebAssembly, there are some challenges facing this technology. One of the main challenges is related to education and acceptance within the programming community. Developers need to learn a new language and tools associated with WebAssembly, which may require some effort and time. It's also worth noting that not all browsers fully support WebAssembly, although most modern browsers offer good support. As this technology continues to evolve, greater browser support can be expected. Summary The future of WebAssembly looks promising, bringing new possibilities for creating more efficient and scalable web applications. This technology has the potential to bring web applications closer to traditional desktop applications in terms of performance and functionality. However, to unlock the full potential of WebAssembly, ongoing research, developer education, and the further development of related tools and libraries will be necessary.
Angular v16 News: Revolution in Reactivity, Server-side Rendering, and Tools for Independent Components
Last year, the Angular team introduced a standalone API as part of the developer preview. Now, we present a groundbreaking update for Angular version 16, bringing significant advancements in reactivity, server-side rendering, and new tools. It's all a result of dozens of improvements in response to user feedback. Reactivity Revolution In the v16 release, we introduce a completely new reactivity model for Angular, which brings significant performance and developer experience improvements. It's fully backward compatible and interoperable with the existing system, and it enables: Improved real-time performance by reducing computations during change detection. After deploying Angular Signals, we expect a significant improvement in the INP Core Web Vital metric for signal-driven applications. It introduces a simpler mental model for reactivity, clearly defining dependencies between views and data flow throughout the application. It enables more precise reactivity, allowing us to monitor changes only in affected components in future versions. Makes Zone.js optional in future versions by using signals to notify the framework of changes in the model. It provides property computations without the penalty of re-computation in every change detection cycle. Enhances interoperability with RxJS by introducing a plan for reactive inputs. In v16, you'll find a new Signals library that is part of @angular/core, as well as an RxJS interop package - @angular/core/rxjs-interop. Angular Signals The Angular Signals library allows you to define reactive values and express dependencies between them. You can learn more about the library's features in the relevant RFC document. Here's a simple example of using it in Angular: The code above creates a computed value fullName that depends on the signals firstName and lastName. We also declare an effect whose callback function will run whenever we change the value of any of the observed signals - in this case, fullName, which indirectly depends on firstName and lastName. When we set the value of firstName to Mark, the browser will log: Name changed: Mark Doe RxJS Interoperability You'll be able to easily lift signals to observables using functions from the @angular/core/rxjs-interop package, which is available as part of the v16 release! Here's how you can transform a signal into an observable: ... and here's an example of transforming an observable into a signal to avoid using the async pipe: Many Angular users want to end data flows when an action related to a particular topic concludes. The following pattern illustrates this and is quite common: A new RxJS operator called takeUntilDestroyed has been introduced, simplifying this pattern to the following form: By default, this operator will inject the current cleanup context. For example, it will use the component's lifecycle in a component. takeUntilDestroyed is especially useful when you want to tie the observable's lifecycle to the specific component's lifecycle. Server-side Rendering and Hybridization Based on annual developer surveys, server-side rendering emerges as a crucial improvement in Angular. In recent months, the Angular team has collaborated with the Chrome Aurora team to boost performance and enhance developer experiences in the area of hybridization and server-side rendering. Now, a developer preview of full hybridization is available without disrupting the application's functionality. Angular Hybridization - a new option. In full hybridization without Angular destruction, Angular stops recreating the application from scratch. The framework identifies existing DOM nodes, creates internal data structures, and assigns event listeners to those nodes. The benefits include: No content flickering for end users. Better Core Web Vitals metrics in certain scenarios. A future-ready architecture allowing the loading of fine-grained code using elements we'll provide later this year. Currently, it's visible as progressive delaying of route hybridization. Easy integration with existing applications in just a few lines of code. Incremental adoption of hybridization with the ngSkipHydration attribute in components that manually manipulate the DOM. In early tests, we've seen up to a 45% improvement in Largest Contentful Paint with full hybridization! To get started, simply add a few lines of code to your main.ts file: New Server-side Rendering Features In the v16 release, the extension schema for ng in Angular Universal has been updated, allowing server-side rendering to be added to projects using the standalone API. Furthermore, we now support a stricter content security policy. Enhancements for Standalone Components, Directives, and Pipes To support developers in migrating their applications to the standalone API, migration schematics and a migration guide have been developed. When you're in your project directory, run the following command: Zone.js Configuration Zone.js configuration has been added through a new API called bootstrapApplication when using the standalone API. We've added this option, which allows for Zone.js configuration using the new provideZoneChangeDetection API: Developer Tooling Several key features from Angular CLI and the language service. Developer Preview of esbuild-based Build System In Angular v16, the esbuild-based build system enters the developer preview phase! Previous tests have shown over a 72% improvement in production build performance. Now, ng serve will use Vite as the development server, and esbuild powers both the development and production processes! To enable this feature, add the following to angular.json: Improved Unit Testing with Jest and Web Test Runner Experimental support for Jest has been added, and in future versions, migration from Karma to Web Test Runner is possible. Enhancing Developer Experience Required Inputs In v16, you can now mark inputs as required: Passing Router Data as Component Inputs Now you can pass the following data as component inputs for routing: Path parameters Query parameters Location data You can enable this feature using withComponentInputBinding as part of the provided router. Flexible ngOnDestroy Angular's lifecycle hooks provide various opportunities to hook into different points in your application's execution. One request over the years has been to provide more flexibility, such as accessing OnDestroy as an observable function. In v16, the ability to inject OnDestroy has been introduced, giving developers the flexibility they've asked for. This new feature allows injecting a DestroyRef corresponding to a component, directive, service, or pipe, and registering an onDestroy hook. DestroyRef can be injected anywhere in the injection context, even outside the component; in this case, the onDestroy hook will be triggered when the corresponding injector is destroyed. Self-Closing Tags Self-closing tags have been added, here's an example:
Updating Angular Version in Your Project: Step by Step
Sometimes there is a need to upgrade the Angular version in our project in order to use the latest features, fix bugs, or improve the application's performance. In this step-by-step guide, you will learn how to do that. Step 1: Check the Current Angular Version Before you begin the Angular update, it's worth finding out which version of Angular you are currently using. You can check this by navigating to the project directory and running the following command in the command line: This command will display information about the current version of Angular and other CLI tools used in the project. Save this information so you can compare it to the new version after the update. Step 2: Update Angular CLI Angular CLI is a tool for managing Angular projects. It is recommended to update the CLI as the first step. You can do this by executing the following command: This command will automatically update Angular CLI to the latest available version. After the update is completed, check if the new CLI version is installed correctly by running the ng version command again. Step 3: Update Angular Version Now that Angular CLI has been updated, you can proceed to update Angular itself. Use the following command to update Angular: The CLI will automatically update Angular to the latest available version. This may take a few moments depending on the number of changes in the new version. Step 4: Resolve Conflicts and Errors After the update, it's a good practice to test the project and ensure that everything is functioning correctly. Often, a new version of Angular introduces changes in the API or internal project structures, which can lead to conflicts or errors. If you encounter errors, read the console feedback to identify the issue. Then, follow the recommendations to resolve the errors. Remember, this is an important step to ensure that your project is stable after the update. Step 5: Update Dependencies During the Angular update, it may be necessary to update other project dependencies, such as libraries, modules, tools, or scripts. Make sure that all dependencies are updated to versions compatible with the new Angular version. This is especially important to avoid conflicts and errors during project operation. Step 6: Test the Project After completing the project update process, test it to ensure that everything is working as expected. Perform unit tests, check the site, navigate through it, and verify that all features are functioning correctly. This is a crucial step to ensure that your project is functioning as intended.
Utilizing TypeScript in Your Project: Advanced Types and Their Applications
In today's world, many people tend to associate the JavaScript language mainly with animations on websites. However, it's essential to realize that this versatile programming language is not only used in web browsers but also on the server side and in the development of web, mobile, and desktop applications. In this context, there is a tool that can significantly improve the quality of JavaScript code and make life easier for developers - TypeScript. What Is TypeScript? TypeScript, developed by Microsoft, is an extension of JavaScript that introduces many new capabilities. One of its main strengths is static variable typing. Why is this important? To understand this, we need to be aware that in pure JavaScript, the lack of variable typing can lead to potentially erroneous and hard-to-locate errors. For example, if you pass a string as an argument where a number is expected, it can lead to unexpected results. In JavaScript, such an error is not detected until the program is running. However, TypeScript, being a more rigorous tool, detects such errors during compilation. Advanced Types in TypeScript It's worth understanding that TypeScript offers much more than just static typing. Here are a few advanced type handling mechanisms that significantly facilitate the work of programmers: Pick<Type, Keys> - This mechanism allows you to create a new type with selected fields. For example, imagine that you want to update only the title of a movie, selecting only the title and id fields, leaving the rest unchanged. The Pick mechanism allows you to do this, creating a new type that contains only the selected fields. Partial<Type> - Conversely, you may need to create objects in which all fields are optional. For example, when you don't want to provide all the properties of a movie, you can use Partial to create a type in which all fields are optional. This is useful when not all information is required. Omit<Type, Keys> - This mechanism works the opposite way of Pick, meaning it removes selected fields. For instance, if you want to get rid of certain properties from your type, you can use Omit to create a new type without those properties. Required<Type> - In some cases, you may want certain fields to always be present. Required, in contrast to Partial, sets all fields as required. This allows you to ensure that specific properties are always in the object. Readonly<Type> - If you want certain properties to be read-only, you can use Readonly. This is useful to protect certain values from unwanted changes. Summary TypeScript is a tool that not only enhances the quality of JavaScript code but also helps in creating more reliable software. With static typing and advanced type handling mechanisms, developers can avoid many potential errors and build more robust applications. Whether you're working on a web, mobile, or desktop project, TypeScript can prove to be a valuable tool that significantly simplifies work and helps maintain high-quality code. Mastering advanced type handling mechanisms is a crucial step towards creating more efficient and reliable software.
WordPress: Content Management System
WordPress is a popular content management system (CMS) that allows you to create websites in a simple and intuitive way. It is a free tool that has gained immense popularity due to its user-friendliness and versatility. The key features of WordPress include: Benefits of Using WordPress WordPress is highly popular due to a range of benefits it offers to its users. The key advantages of using this system include: - User-Friendliness WordPress offers an intuitive interface that allows you to create and manage websites without requiring advanced programming knowledge. With a visual editor, adding content, images, and pages becomes incredibly easy. - Abundance of Available Extensions Thanks to a vast community of developers, WordPress provides a wide range of plugins and themes that allow you to customize your site to meet your specific needs. You can extend your site's functionality, such as adding an online store, discussion forums, or contact forms. - Responsiveness In today's world, where users access websites on various devices, site responsiveness is crucial. Most WordPress themes are optimized for display on smartphones, tablets, and computers. - SEO Friendliness WordPress is designed with search engine optimization (SEO) in mind. It features SEO-friendly URL structures and allows customization of meta tags, content, and headers, which helps improve visibility in search results. - Thriving Community WordPress enjoys support from a massive community of users and developers. You can find plenty of tutorials, discussion forums, and online support sources, making it easier to troubleshoot problems and gain knowledge. - Security WordPress cares about the security of its users through regular updates that address security vulnerabilities. With the awareness of the developer community, WordPress can respond to evolving threats. It's worth noting that while WordPress is perfect for beginners, it also offers enough capabilities for advanced programmers who want to customize their site according to their needs. WordPress in Action WordPress operates in PHP and utilizes a MySQL database, meaning you don't need to know these languages to start using the CMS. With available plugins and themes, you can create various types of sites, such as blogs, corporate websites, portfolios, online stores, and even forums. Regardless of your skill level, WordPress provides tools for effective content management on your site. Whether it's running a blog, publishing product information, or creating complex websites, WordPress is a versatile solution. Conclusion WordPress is a flexible and user-friendly CMS that allows you to create various types of websites. Its ease of use and the availability of numerous extensions make it an ideal tool for both beginners and advanced users. It's important to know that this system is continually developed and updated, ensuring it meets the latest industry standards. Despite some drawbacks and potential security concerns, WordPress remains one of the most popular and frequently chosen solutions for website creation worldwide. If you value simplicity and effectiveness, it's worth giving it a try.
IT industry insights in the category Frontend
Frontend Technology Insights
Frontend technology is a crucial element in today's internet world. It allows users to interact with websites and web applications, creating user-friendly and engaging online experiences. There are many interesting facts related to this field that are worth knowing. Here are some fascinating facts:
1. Evolution of CSS
Cascading Style Sheets (CSS) are an essential part of frontend, allowing the shaping and styling of web pages. It's worth noting that the first CSS specification was published in 1996. Since then, CSS has undergone many changes and updates, making it a powerful tool for designing web pages.
2. Responsive Web Design
One of the key aspects of frontend is creating responsive websites. This approach adapts a website to different screen sizes, allowing users to access the site on various devices, from smartphones to desktop computers. Responsive Web Design has become an integral part of web design.
3. Popularity of JavaScript
JavaScript is one of the most important programming languages in the frontend field. Interestingly, JavaScript was originally created as a scripting language for use in web browsers. Today, it is used not only for creating interactive websites but also in server-side applications and other areas of computer science.
4. Open Source Culture
In the world of frontend and technology in general, the open source culture plays a crucial role. Many frontend tools and libraries, such as jQuery, React, and Angular, are based on open-source principles. This allows developers worldwide to collaborate on the development and improvement of these tools.
5. WebGL and 3D in Browsers
In the past, creating three-dimensional effects in browsers was challenging. Thanks to WebGL technology, it is now possible. WebGL is an API that enables the use of 3D graphics in web browsers. Thanks to this, we can now view interactive 3D visualizations without the need for special plugins.
6. Rise of Single Page Applications (SPA)
SPA is a type of web application that loads only one page and dynamically updates the content on that page in response to user actions. Thanks to technologies like React, Angular, and Vue.js, SPAs have become very popular due to their speed and smooth performance.
7. The Future of WebAssembly
WebAssembly (Wasm) is a new technology gaining popularity in the frontend field. It is a virtual machine that allows the execution of low-level code in web browsers. With WebAssembly, websites become even more efficient and faster.
8. ES6 Modules
ECMAScript 6, also known as ES6, introduced many new features to JavaScript, including modules. ES6 modules allow for better organization and management of source code, which is particularly useful in larger projects.
9. CSS Preprocessors
CSS preprocessors, such as SASS and LESS, are used to simplify working with cascading style sheets. They enable the creation of more complex and modular styles and make project maintenance and development easier.
10. Debugging Tools
Debugging frontend code is an integral part of the web development process. Tools like browser developer tools and code inspection tools make it easier to find and fix errors in the code.
11. Using Responsive Images
With responsiveness in mind, various techniques have been implemented to deliver images depending on the screen size. Technologies like srcset and sizes allow for dynamic image delivery of appropriate sizes, improving website performance.
12. Browsers and Web Standards
Web browsers constantly evolve and adapt to new web standards. The most important organizations working on these standards are W3C (World Wide Web Consortium) and WHATWG (Web Hypertext Application Technology Working Group), ensuring browser consistency and compliance with new technologies.
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