Saturday 22 July 2023

Seven front-end development trends in 2023-2024

With the increasing prevalence of apps in the digital landscape, the role of front-end developers remains essential. While apps aim to overshadow traditional websites, front-end web development continues to evolve at a rapid pace. In this article, we will delve into seven key front-end development trends that are expected to shape the industry in 2023-24. These trends highlight the evolving nature of web development and provide valuable insights into the emerging technologies and approaches in the field.

front-end development trends 2023-2024

1. Microservice Frameworks vs. Monolithic Frameworks: The adoption of microservices architecture over monoliths has been on the rise, particularly within the finance industry. This shift has been validated by many software leading companies, which demonstrates the growing trust in microservices as a proven architecture for application development. Additionally, the emergence of the "micro-frontends approach" allows for flexible integration of microservices into front-end development, enabling teams to deploy individual services more effectively.

2. Single-Page Applications: As internet connectivity improves worldwide, users demand faster web page loading times. Single-page applications (SPAs) have gained popularity due to their ability to reduce load times and eliminate the need for frequent page reloads. Frameworks like Angular.js, React, and Vue have become go-to choices for creating SPAs. 

3. Platforms for Autocoding: The advent of AI-driven tools, such as GitHub Copilot, is transforming coding practices by automating certain aspects of development. Web development is no exception, as developers increasingly rely on AI assistance. A survey reveals that 66% of web developers believe their work is not at risk of being replaced by AI. Moreover, 65% express interest in utilizing GitHub Copilot to streamline their workflows. This trend has the potential to reshape the way web developers approach their tasks.

4. Progressive Web Apps: Progressive web apps (PWAs) have emerged as a popular web development method since their inception. PWAs offer a unified, accessible, and fast user experience and are supported by various JavaScript frameworks. Their platform-agnostic nature is particularly valuable in the midst of an OS upgrade cycle. PWAs have demonstrated longevity and are expected to continue as a significant trend in web development throughout 2023.

5. Rendering on the Server: Server-side rendering (SSR) is making a comeback, even within front-end development. While client-side rendering dominated with the rise of JavaScript-based websites, SSR solutions are gaining traction. SSR involves rendering the web app on the server and then delivering it to the client, providing benefits such as faster delivery of large web apps and improved SEO compared to client-side rendering.

6. Little Languages: Little languages refer to lightweight programming languages that serve specific purposes within web development. Popular frameworks like React and Angular act as substitutes for little languages when incorporated into websites. The growth rates of these frameworks continue to climb, with developers increasingly utilizing multiple frameworks to build applications. Familiarity with these frameworks will be crucial for web developers to remain relevant in the coming years.

7. Accessibility: As inclusivity becomes increasingly important, developers are placing a higher emphasis on creating accessible web applications. Research indicates that web developers believe improved website accessibility has a more significant impact than enhanced assistive technologies. Incorporating accessibility features through structural HTML allows for the creation of user-friendly versions for individuals with slow internet connections and better support for screen readers.

Conclusion: Contrary to claims of its demise, web development continues to evolve and expand. While auto-coding platforms may automate certain coding aspects, the role of skilled front-end web developers remains crucial in addressing UI/UX challenges and keeping up with industry trends. By closely following these seven front-end development trends in 2023, developers can adapt to the evolving landscape and create innovative, user-centric web experiences.

Staying updated with the latest advancements in the field will be essential for maintaining competitiveness and ensuring the success of web development projects.

Monday 17 July 2023

How to handle multiple API requests in Angular by using mergeMap and forkJoin

In modern web development, it's common to encounter scenarios where multiple API requests need to be handled in Angular applications. To ensure efficient and maintainable code, it's crucial to implement a proper solution that avoids issues like nested subscriptions. In this tutorial, we will explore how to handle multiple API requests using the mergeMap and forkJoin operators from the Angular RxJS library.
Handle multiple API request in Angular



Problem Statement: Let's try to understand the problem. When dealing with multiple API calls, relying solely on the subscribe operator can lead to nested subscriptions, which can result in unhandled Observables and Subscriptions. This can cause memory-related issues. Let's examine the typical approach that utilizes nested subscriptions:

typescript
import { Component, OnInit } from '@angular/core'; import { HttpClient } from '@angular/common/http'; import { map } from 'rxjs/operators'; @Component({ selector: 'app-code-revisited', templateUrl: './code-revisited.component.html', styleUrls: ['./code-revisited.component.css'] }) export class CodeRevisitedComponent implements OnInit { todoValue: string = ''; comment: any; constructor(private http: HttpClient) {} ngOnInit(): void { this.retrieveDefaultData(); } retrieveDefaultData(): void { this.http.get('https://jsonplaceholder.typicode.com/posts/1').pipe( map((todo: any) => todo[0]) ).subscribe((todo: any) => { this.todoValue = todo; this.http.get(`https://jsonplaceholder.typicode.com/posts/${this.todoValue}/comments`).subscribe((comment: any) => { this.comment = comment; }); }); } }

While this technique seems straightforward, it can lead to memory leaks and potential issues. Each new subscription triggers a fresh copy of the defined Observable pipeline, which consumes memory and can cause performance problems.

Using mergeMap: To overcome the drawbacks of nested subscriptions, we can leverage the mergeMap operator. It applies a transformation function to each emitted value and merges the resulting observables into a single output observable. By using mergeMap, we can flatten asynchronous operations and avoid nested subscriptions. Let's see an example:

typescript
import { Component, OnInit } from '@angular/core'; import { HttpClient } from '@angular/common/http'; import { map, mergeMap } from 'rxjs/operators'; @Component({ selector: 'app-code-revisited', templateUrl: './code-revisited.component.html', styleUrls: ['./code-revisited.component.css'] }) export class CodeRevisitedComponent implements OnInit { todoValue: string = ''; comment: any; mergeMapResult: any; constructor(private http: HttpClient) {} ngOnInit(): void { this.retrieveDefaultData(); } retrieveDefaultData(): void { this.http.get('https://jsonplaceholder.typicode.com/posts/1').pipe( map((todo: any) => todo), mergeMap((todo: any) => this.http.get(`https://jsonplaceholder.typicode.com/posts/${todo}/comments`)) ).subscribe((response: any) => { this.mergeMapResult = response; }); } }

By using mergeMap, we can avoid nested subscriptions and create more readable code. The operations are executed sequentially, resulting in cleaner code that is easier to maintain.

Utilizing forkJoin: The forkJoin operator is useful when we have multiple parallel API requests that are independent of each other and we want to wait for all of them to complete before proceeding. Instead of nested subscriptions, we can use forkJoin to simplify the handling of parallel requests. Here's an example:

typescript
import { Component, OnInit } from '@angular/core';
import { HttpClient } from '@angular/common/http'; import { forkJoin } from 'rxjs'; @Component({ selector: 'app-code-revisited', templateUrl: './code-revisited.component.html', styleUrls: ['./code-revisited.component.css'] }) export class CodeRevisitedComponent implements OnInit { todoValue: string = ''; comment: any; firstApiResult: any; secondApiResult: any; constructor(private http: HttpClient) {} ngOnInit(): void { this.retrieveDefaultData(); } retrieveDefaultData(): void { const firstAPI = this.http.get('https://jsonplaceholder.typicode.com/posts/1'); const secondAPI = this.http.get('https://jsonplaceholder.typicode.com/posts'); forkJoin([firstAPI, secondAPI]).subscribe((result: any) => { this.firstApiResult = result[0]; this.secondApiResult = result[1]; }); } }

By using forkJoin, we simplify the handling of parallel API requests. It eliminates the need for nested subscriptions and improves code readability and maintainability.

Conclusion: By using mergeMap and forkJoin from the RxJS library, you can efficiently handle multiple API requests in Angular without resorting to nested subscriptions. This approach improves code readability, enhances maintainability, and allows for the parallel execution of asynchronous operations.


Seven front-end development trends in 2023-2024

With the increasing prevalence of apps in the digital landscape , the role of front-end developers remains essential. While apps aim to ove...

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