Angular

Angular News : Ngrx, Web Bluetooth, NativeScript, & Angular Translations

Published Oct 28, 2019

Updated Feb 14, 2023

5 min read

This article was written over 18 months ago and may contain information that is out of date. Some content may be relevant but please refer to the relevant official documentation or available resources for the latest information.

Angular’s innovative updates and partnerships continue to move forward and grow each month. The community is constantly moving and introducing interesting topics for Angular and JavaScript developers. In this article we review conversations around the beginnings of the Nativescript and Angular integration, new inventions using APIs like web bluetooth and IoT, solutions the Angular community has created to address translation issues in Angular, and use cases for the popular ngrx.

Featured are experts in Angular including Mike Ryan (@mikeryandev) from the ngrx core team, Olivier Combe (@Ocombe) from the Angular Core Team, Uri Shaked (@Urishaked), a Google Developer Expert and speaker, and TJ Vantoll (@tjvantoll), Principal Developer Advocate at Progress for NativeScript.

Angular + ngrx

The Benefits of Using ngrx with Angular with Core Contributor Mike Ryan

As a core contributor of ngrx, Mike introduces us to the ngrx project. Ngrx is a concise reactive library for Angular. With the need for higher performance, Mike was determined to create a library that had immutable state management for applications. Once this was accomplished, the idea to use observables to express the state changes followed.

Mike explains the value of using ngrx with angular and the benefits of having the ability to manage state and side effects. He also discusses some comparisons between ngrx and redux-observable.

When using ngrx, it is important to consider the state of the application and how many ways this state can change. If there isn’t very much state and the only updates are made with REST APIs, ngrx might not be the best fit. However, when a lot of user interaction is involved and you are making a lot of REST calls or handling webstock and images is a must, using ngrx is highly beneficial.

The path to adopt ngrx is a simple one. Mike explains how developers may go about (slowly) introducing an application they recently built.

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Angular, NgBeacon, and Bluetooth

Combining Angular, Web Bluetooth, and IoT Hardware with Uri Shaked

Uri Shaked demonstrates what happens when you collide two worlds that you’re passionate about. You create inventions that are fun and exciting. Uri introduces NgBeacon, a bluetooth low energy device capable of running JavaScript code. In this interview, he showcases how the device can broadcast urls through the physical web with the help of a Chrome widget on an iPad.

Electronics is something that Uri explores as a hobby. He mentions that he is a beginner himself, as he had the NgBeacon’s PCB board made in China, and learned how to solder components onto it on his ownr. Uri shares another creation of his, Bonnie, a mascot Shai Reznik uses in all of his instructional videos. Within a few minutes, he is able to connect the 3D printed Bonnie to a phone and command it to say “hi”. Uri then explains how this is possible.

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Angular Translations + i18n

Building Multilingual Applications Using Angular Translations and i18n with Olivier Combe

Olivier Combe, an Angular core team member, walks us through the difficulties involved with translating apps in Angular. When Angular 2 was released in alpha, Olivier was determined to start a project that would help him learn more about the framework. His first choice was to start a library, so he decided to experiment with angular translate. After discovering that this was something a lot of people needed, he continued to work on it.

When companies are thinking of adding translation to their applications, there are two main things that Olivier addresses as important. The first is whether or not a translation fits into the website design. The second is what solutions are currently available and on the market.

He also explains one of the hardest parts of building a multilingual application is translating strings in your code. Because of this, it is difficult to have one source of data. He also adds that some languages may be harder to translate because of the complexity of characters or structure. One example Olivier gives is creating an app where the language interpretation occurs from right to left, instead of left to right. In this case, one would have to change the wall design in order to adapt to this specific language rule.

Olivier explains the simplest way to overcome these issues is to create a website that is agnostic. i18n can be an option for simplifying angular translation as well. Olivier is currently working on improving the support of this process so that it can be used in code. He’s also looking to improve the way dates and numbers are handled, and perfecting tools. Adding support with i18n so that it can be used in code is also something in the works and stemmed originally from how Google uses closure in its i18n attributes.

{% youtube SK6snNc8eUA %}

Nativescript, Cordova, and Angular

The History Behind the Inner Workings of NativeScript and Angular with TJ Vantoll

TJ shares the history behind how NativeScript was first implemented and why. Before NativeScript, Cordova was the well-known mobile development framework and was great for building simple web apps. However, performance and device capabilities soon became matters in question to both the users and the developers. After realizing the downsides of Cordova, the NativeScript team decided that creating something new from the ground up should be the next step. That was when Nativescript was introduced as a technology that would support building native user interfaces.

TJ talks about the differences between using NativeScript compared to other alternatives that involve Angular in mobile devices. He refers to Cordova and Ionic as examples, and elaborates on how these two frameworks function. TJ covers how JavaScript runs inside a mobile environment with JavaScript Virtual Machine and how it packages native binaries that are then shipped on iOS and Android apps.

The process TJ describes is very similar to how Chrome, using V8, requires an additional mechanism to provide info on window and document objects. TJ also talks about the tight integration between NativeScript and Angular, the perks of this collaboration, and whether or not other frameworks can join in on the partnership as well.

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Stay tuned for more Angular, as new releases become available in this community.

For more information about Angular you can visit http://angular.io.

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Using HttpClient in Modern Angular Applications

Introduction With all the wonderful treats that the Angular team has given us during the recent "renaissance" era, many new developers are joining in on the fun. And one of the challenges they'll face at some point is how to call an API from your Angular application properly. Unfortunately, while searching for a guide on how to do this, they might stumble upon a lot of outdated information. Hence, this article should serve as a reliable guide on how to use the HttpClient in Angular >= 17. The Setup To make an HTTP request in Angular, you can take advantage of the HttpClient provided by the @angular/common/http package. To use it, you'll need to provide it. Here's how you can do that for the whole application using the bootstrapApplication function from @angular/platform-browser: ` With that, you should be good to go. You can now inject the HttpClient into any service or component in your application. Using HttpClient in Services Let's take a common example: You have a database object, say a Movie, and you want to implement CRUD operations on it. Typically, you'll want to create a service that provides methods for these operations. Let's call this service MovieService and create a skeleton for it with a method for getting all movies. ` Implementing the Method using HttpClient Let's assume we have a GraphQL API for our movies. We can implement our getAllMovies using HttpClient to make a request to fetch all movies. First, we will need to define a new type to represent the response from the API. This is especially important when you are using GraphQL, which may return a specific structure, such as: ` When working with a real API, you'll likely use some code generator to generate the types for the response from the GraphQL schema. But for the sake of this example, we'll create an interface to represent the response manually: ` Now, we can implement the getAllMovies method using HttpClient: ` > Note: The post method is used here because we are sending a request body. If you are making a GET request (e.g. to a REST API), you can use the get method instead. The getAllMovies method returns an Observable of MoviesListResponse. In this example, I have typed it explicitly to make it obvious at first glance, but you could also omit the type annotation, and TypeScript should infer it. > Note: While I'm excited about signals as much as the next guy, making HTTP requests is one of the typical async operations for which RxJS Observables are a perfect fit, making a great argument for RxJS still having a solid place in Angular alongside signals. Using the Service in a Component Now that we have our MovieService set up, we can use it as a component to fetch and display all movies. But first, let's create a Movie interface to represent the structure of a movie. Trust me, this will prevent many potential headaches down the line. Although using any at the beginning and implementing the types later is a valid approach in some cases, using data fetched from an API without validating the type will inevitably lead to bugs that are difficult to solve. ` Now, we can start implementing our standalone MoviesComponent: ` In this component, we are calling the getAllMovies method from the MovieService in the constructor to fetch all movies and assign them to the movies property which we will use to display the movies in the template. ` In this case, placing our code inside the constructor is safe because it doesn’t depend on any @Input(). If it were, our code would fail because the inputs aren’t initialized at time of instantiation. That's why it is sometimes recommended to place logic in ngOnInit instead. You could also put this call in an arbitrary method that is called e.g. on a button click. Another way to handle the subscription is to use the async pipe in the template. This way, Angular will automatically subscribe and unsubscribe from the observable for you and you won't have to assign the response to a property in the component. Due to the structure of the returned data, however, we'll need to use the RxJS map operator to extract the movies from the response. ` > Note using the pipe method to chain the map operator to the observable returned by getAllMovies. This is a common pattern when working with RxJS observables introduced in RxJs 5.5. If you see code that uses the map operator directly on the observable and wonder why it isn't working for you, it's likely using an older version of RxJS. Now, we can simply apply the async pipe in the template to subscribe to the observable and display the movies: ` Conclusion HttpClient in Angular is pretty straightforward, but with all the changes to RxJS and Angular in the past few years, it can pose a significant challenge if you're not super-experienced with those technologies and stumble upon outdated resources. Following this article, you should hopefully be able to implement your service using HttpClient to make requests to an API in your modern Angular application and avoid the struggle of copying outdated code snippets....

Mar 27, 2024

4 mins

AngularJavaScript

SSR Finally a First-Class Citizen in Angular?

I am sure you've already heard about server-side rendering (SSR). Generally, it's a technique used to deliver the HTML content generated by the server to the client. The client-side JavaScript framework then hydrates that HTML content to provide a fully interactive application. SSR provides numerous benefits if used correctly, including improved initial load times, better content indexing by search engines, and improved performance on lower-tier devices. Driven by the need for faster, more efficient web applications, with the rise in popularity of Node.js and, thus, server-side JavaScript, SSR has become a de facto standard in modern web development frameworks. At first, SSR was being provided as a part of meta-frameworks like Next.js, Nuxt, or Analog.js. Then, React introduced React Server Components, which marked a significant milestone in the way we think about front-end development. We think of front-end frameworks as being effectively full-stack, and a purely SPA approach is falling out of favor. However, I'm willing to bet that if you're a developer focused mostly on Angular, you may not have heard as much about SSR as your React counterparts. For a long time, Angular has been mostly focused on the SPA approach, and while we had Angular Universal or Analog.js, it was not as widely adopted. And that makes sense, given that Angular was widely regarded as best suited for complex, interactive applications, such as SaaS products or internal company tools, where SEO and initial load times were not as critical as they are for consumer-facing applications. Nevertheless, we have been blessed with the so-called Angular Renaissance, which has, among other things, brought SSR to the forefront of Angular development with the @angular/ssr package. Let's look at what Angular SSR is, how it works, and how you can get started. @angular/ssr The @angular/ssr package is not new; it was written from scratch. It's still Angular Universal. However, it's been pulled into the Angular CLI repository, and the appropriate schematics have been added to make it easier to use. What that means is that you can now add SSR to your Angular application with a single command: ` and you can generate a new SSR application with: ` And to make SSR a first-class citizen, the Angular team is planning to make it the default in the next version. But surely, it's not only rebranding and some CLI commands, you may say. And you're right. You may remember that hydration in Angular Universal has not been optimal as it was destructive and required essentially a complete re-render of the application, thus pretty much negating the benefits of SSR. With the introduction of non-destructive hydration in Angular 16 and its stability in Angular 17, the Angular team has taken a significant step forward in making SSR a first-class citizen. How to Make an SSR-capable Angular Application Let's look at how to use Angular SSR in practice by creating a simple SSR app. First, we need to create a new Angular application with SSR support: ` That will generate a few server-specific files: - server.ts, which is an Express server configured to handle Angular SSR requests by default but can also be extended to handle API routes, or anything else that Express can handle. - src/app/app.config.server.ts provides configuration for the server application similar to your app.config.ts, which defines the configuration for your client application. Both export an instance of ApplicationConfig - src/main.server.ts bootstraps the server application in a similar way to what main.ts does for your client app by calling the bootstrapApplication function. You should have an SSR application ready just like that. You can verify that by running ng serve. The terminal output should show you information about the server bundles generated, and you should be able to see the default app when going to http://localhost:4200. Open the Developer Tools and check the console to see that hydration is enabled. You'll see a message with hydration-related stats, such as the number of components and nodes hydrated. Speaking of hydration... Client Hydration If you open the src/app/app.config.ts in your new SSR application, you'll notice one interesting provider: provideClientHydration(). This provider is crucial for enabling hydration - a process that restores the server-side rendered application on the client. Hydration improves application performance by avoiding extra work to re-create DOM nodes. Angular tries to match existing DOM elements to the application's structure at runtime and reuses DOM nodes when possible. This results in a performance improvement measured using Core Web Vitals statistics, such as reducing the Interaction To Next Paint (INP), Largest Contentful Paint (LCP), and Cumulative Layout Shift (CLS). Improving these metrics also positively impacts SEO performance. Without hydration enabled, server-side rendered Angular applications will destroy and re-render the application's DOM, which may result in visible UI flicker, negatively impact Core Web Vitals like LCP, and cause layout shifts. Enabling hydration allows the existing DOM to be reused and prevents flickering. Event Replay and Improved Debugging With Angular 18, event replay, a feature that significantly enhances the SSR experience, came into developer preview. Event replay captures user interactions during the SSR phase and replays them once the application is hydrated. This ensures that user actions, such as adding items to a cart, are not lost during the hydration process, providing a seamless user experience even on slow networks. To enable event replay, you can add withEventReplay to your provideClientHydration call: ` Furthermore, Angular 18 takes another step towards making SSR a first-class citizen by enhancing the debugging experience with Angular DevTools. Now, DevTools include overlays and detailed error breakdowns, empowering developers to visualize and troubleshoot hydration issues directly in the browser. Constraints However, hydration imposes a few constraints on your application that are not present without hydration enabled. Your application must have the same generated DOM structure on both the server and the client. The hydration process expects the DOM tree to have the same structure in both environments, including whitespaces and comment nodes produced during server-side rendering. Direct DOM Manipulation The fact that server and client DOM structures must match means that components that manipulate the DOM using native DOM APIs or use innerHTML or outerHTML will encounter hydration errors. The errors are thrown because Angular is unaware of these changes and cannot resolve them during hydration. Examples include accessing the document, querying for specific elements, and injecting additional nodes using appendChild. Detaching DOM nodes and moving them to other locations will also cause errors. Direct DOM manipulation is generally considered bad practice in Angular, so I recommend refactoring your components to avoid it regardless of hydration. However, in warranted cases where refactoring is not feasible, you can use the ngSkipHydration attribute until a hydration-friendly solution can be implemented. You can use it directly in a template: ` or as a host binding: ` > Note: The ngSkipHydration attribute forces Angular to skip hydrating the entire component and its children. So use this attribute carefully, as, for example, applying it to your root application component would effectively disable hydration for the entire application. Valid HTML Structure Another constraint is that invalid HTML structures in component templates can result in DOM mismatch errors during hydration. Common issues include: - without a - inside a - inside an - inside another Again, if you have an invalid HTML, you should fix this regardless of hydration. If you are unsure about your HTML's validity, you can use the W3 validator to check it. Zoneless apps or custom Zone.js Hydration relies on a signal from Zone.js when it becomes stable. Custom or "noop" Zone.js implementations may thus disrupt the timing of this event, triggering the serialization or cleanup process too early or too late. This configuration is not yet fully supported. While Zoneless is already available in developer preview and we could assume this issue will be resolved when it lands as stable, there is no explicit ETA mentioned in the official roadmap. I18n One of the biggest blockers for adoption of client hydration was the lack of support for internationalization with hydration. By default, Angular 17 skipped hydration for components that used i18n blocks, re-rendering them from scratch. In Angular 18, however, hydration for i18n blocks got into developer preview. To enable hydration for i18n blocks, you can add withI18nSupport to your provideClientHydration call. ` Third-Party Libraries with DOM Manipulation The last thing to consider is third-party libraries that manipulate DOM, such as D3 charts. They could cause DOM mismatch errors when hydration is enabled. You can use the ngSkipHydration attribute to skip hydration for components rendered using these libraries. Conclusion The Angular team has been doing great work to make the framework more modern and competitive, hearing the community feedback and adjusting the roadmap accordingly. And SSR is an excellent example of that. With the introduction of non-destructive hydration in Angular 16 and making it stable in Angular 17, the Angular team has taken a significant step forward in making SSR a first-class citizen in Angular. The @angular/ssr package is now part of the Angular CLI, making adding SSR to your Angular application easier. The Angular team plans to make SSR the default in the next version, further solidifying its position in the Angular ecosystem. However, as with any new feature, there are some constraints and best practices to follow when using SSR with Angular. You should be aware of hydration's limitations and ensure your application is compatible with it. However, if you follow the guidelines provided by the Angular team, you should be able to take advantage of the benefits of SSR without any significant issues....

Jun 26, 2024

8 mins

AngularJavaScriptExpress.js

“Music and code have a lot in common,” freeCodeCamp’s Jessica Wilkins on what the tech community is doing right to onboard new software engineers

Before she was a software developer at freeCodeCamp, Jessica Wilkins was a classically trained clarinetist performing across the country. Her days were filled with rehearsals, concerts, and teaching, and she hadn’t considered a tech career until the world changed in 2020. > “When the pandemic hit, most of my gigs were canceled,” she says. “I suddenly had time on my hands and an idea for a site I wanted to build.” That site, a tribute to Black musicians in classical and jazz music, turned into much more than a personal project. It opened the door to a whole new career where her creative instincts and curiosity could thrive just as much as they had in music. Now at freeCodeCamp, Jessica maintains and develops the very JavaScript curriculum that has helped her and millions of developers around the world. We spoke with Jessica about her advice for JavaScript learners, why musicians make great developers, and how inclusive communities are helping more women thrive in tech. Jessica’s Top 3 JavaScript Skill Picks for 2025 If you ask Jessica what it takes to succeed as a JavaScript developer in 2025, she won’t point you straight to the newest library or trend. Instead, she lists three skills that sound simple, but take real time to build: > “Learning how to ask questions and research when you get stuck. Learning how to read error messages. And having a strong foundation in the fundamentals” She says those skills don’t come from shortcuts or shiny tools. They come from building. > “Start with small projects and keep building,” she says. “Books like You Don’t Know JS help you understand the theory, but experience comes from writing and shipping code. You learn a lot by doing.” And don’t forget the people around you. > “Meetups and conferences are amazing,” she adds. “You’ll pick up things faster, get feedback, and make friends who are learning alongside you.” Why So Many Musicians End Up in Tech A musical past like Jessica’s isn’t unheard of in the JavaScript industry. In fact, she’s noticed a surprising number of musicians making the leap into software. > “I think it’s because music and code have a lot in common,” she says. “They both require creativity, pattern recognition, problem-solving… and you can really get into flow when you’re deep in either one.” That crossover between artistry and logic feels like home to people who’ve lived in both worlds. What the Tech Community Is Getting Right Jessica has seen both the challenges and the wins when it comes to supporting women in tech. > “There’s still a lot of toxicity in some corners,” she says. “But the communities that are doing it right—like Women Who Code, Women in Tech, and Virtual Coffee—create safe, supportive spaces to grow and share experiences.” She believes those spaces aren’t just helpful, but they’re essential. > “Having a network makes a huge difference, especially early in your career.” What’s Next for Jessica Wilkins? With a catalog of published articles, open-source projects under her belt, and a growing audience of devs following her journey, Jessica is just getting started. She’s still writing. Still mentoring. Still building. And still proving that creativity doesn’t stop at the orchestra pit—it just finds a new stage. Follow Jessica Wilkins on X and Linkedin to keep up with her work in tech, her musical roots, and whatever she’s building next. Sticker illustration by Jacob Ashley....

Apr 25, 2025

3 mins

JavaScriptSoftware Engineering

Internationalization in Next.js with next-intl

Internationalization in Next.js with next-intl Internationalization (i18n) is essential for providing a multi-language experience for global applications. next-intl integrates well with Next.js’ App Router, handling i18n routing, locale detection, and dynamic configuration. This guide will walk you through setting up i18n in Next.js using next-intl for URL-based routing, user-specific settings, and domain-based locale routing. Getting Started First, create a Next.js app with the App Router and install next-intl: ` Next, configure next-intl in the next.config.ts file to provide a request-specific i18n configuration for Server Components: ` Without i18n Routing Setting up an app without i18n routing integration can be advantageous in scenarios where you want to provide a locale to next-intl based on user-specific settings or when your app supports only a single language. This approach offers the simplest way to begin using next-intl, as it requires no changes to your app’s structure, making it an ideal choice for straightforward implementations. ` Here’s a quick explanation of each file's role: * translations/: Stores different translations per language (e.g., en.json for English, es.json for Spanish). Organize this as needed, e.g., translations/en/common.json. * request.ts: Manages locale-based configuration scoped to each request. Setup request.ts for Request-Specific Configuration Since we will be using features from next-intl in Server Components, we need to add the following configuration in i18n/request.ts: ` Here, we define a static locale and use that to determine which translation file to import. The imported JSON data is stored in the message variable, and is returned together with the locale so that we can access them from various components in the application. Using Translation in RootLayout Inside RootLayout, we use getLocale() to retrieve the static locale and set the document language for SEO and pass translations to NextIntlClientProvider: ` Note that NextIntlClientProvider automatically inherits configuration from i18n/request.ts here, but messages must be explicitly passed. Now you can use translations and other functionality from next-intl in your components: ` In case of async components, you can use the awaitable getTranslations function instead: ` And with that, you have i18n configured and working on your application! \ Now, let’s take it a step further by introducing routing. \ With i18n Routing To set up i18n routing, we need a file structure that separates each language configuration and translation file. Below is the recommended structure: ` We updated the earlier structure to include some files that we require for routing: * routing.ts: Sets up locales, default language, and routing, shared between middleware and navigation. * middleware.ts: Handles URL rewrites and locale negotiation. * app/[locale]/: Creates dynamic routes for each locale like /en/about and /es/about. Define Routing Configuration in i18n/routing.ts The routing.ts file configures supported locales and the default locale, which is referenced by middleware.ts and other navigation functions: ` This configuration lets Next.js handle URL paths like /about, with locale management managed by next-intl. Update request.ts for Request-Specific Configuration We need to update the getRequestConfig function from the above implementation in i18n/request.ts. ` Here, request.ts ensures that each request loads the correct translation files based on the user’s locale or falls back to the default. Setup Middleware for Locale Matching The middleware.ts file matches the locale based on the request: ` Middleware handles locale matches and redirects to localized paths like /en or /es. Updating the RootLayout file Inside RootLayout, we use the locale from params (matched by middleware) instead of calling getLocale() ` The locale we get from the params was matched in the middleware.ts file and we use that here to set the document language for SEO purposes. Additionally, we used this file to pass configuration from i18n/request.ts to Client Components through NextIntlClientProvider. Note: When using the above setup with i18n routing, next-intl will currently opt into dynamic rendering when APIs like useTranslations are used in Server Components. next-intl provides a temporary API that can be used to enable static rendering. Static Rendering for i18n Routes For apps with dynamic routes, use generateStaticParams to pass all possible locale values, allowing Next.js to render at build time: ` next-intl provides an API setRequestLocale that can be used to distribute the locale that is received via params in layouts and pages for usage in all Server Components that are rendered as part of the request. You need to call this function in every layout/page that you intend to enable static rendering for since Next.js can render layouts and pages independently. ` Note: Call setRequestLocale before invoking useTranslations or getMessages or any next-intl functions. Domain Routing For domain-specific locale support, use the domains setting to map domains to locales, such as us.example.com/en or ca.example.com/fr. ` This setup allows you to serve localized content based on domains. Read more on domain routing here. Conclusion Setting up internationalization in Next.js with next-intl provides a modular way to handle URL-based routing, user-defined locales, and domain-specific configurations. Whether you need URL-based routing or a straightforward single-locale setup, next-intl adapts to fit diverse i18n needs. With these tools, your app will be ready to deliver a seamless multi-language experience to users worldwide....

Apr 11, 2025

4 mins

NextJSAccessibility

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Angular News : Ngrx, Web Bluetooth, NativeScript, & Angular Translations

Angular + ngrx

Angular, NgBeacon, and Bluetooth

Angular Translations + i18n

Nativescript, Cordova, and Angular

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Using HttpClient in Modern Angular Applications

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“Music and code have a lot in common,” freeCodeCamp’s Jessica Wilkins on what the tech community is doing right to onboard new software engineers

Internationalization in Next.js with next-intl

Let's innovate together!

You might also like

Using HttpClient in Modern Angular Applications

SSR Finally a First-Class Citizen in Angular?

“Music and code have a lot in common,” freeCodeCamp’s Jessica Wilkins on what the tech community is doing right to onboard new software engineers

Internationalization in Next.js with next-intl