How to Build Logic as a Frontend Developer?

How to Build Logic as a Frontend Developer? 🤔

Good at writing code but not so comfortable with the logic part?

This video is for you! Come with me and let's explore how you can build logic as a frontend developer. Let's understand what it takes to build a logical understanding and how you can do that easily.  

Timestamps
0:00 Teaser
0:55 Creating Playground
2:05 Creating Countdown App
9:05 Apply Styling
10:22 TODO for you
10:45 Conclusion
12:04 Outro

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5 Skills That Every Frontend Developer Should Improve

Build better web applications and boost your career growth with these skills

1 - Using MVVM Pattern with Frontend Frameworks

Now we are living in an era that uses the computation power of the user’s computer to execute web applications’ business logic and render interactive web content. Earlier, web developers performed all business logic on the server-side and used the client-side only for rendering. Nowadays, many web applications work offline by holding about 90% of the entire business logic on the web browser.

Modern front-end frameworks offer different development environments for front-end developers. But, all popular frameworks were implemented by allowing the developer to work with the generic Model-View-ViewModel pattern (MVVM). Angular separates View and ViewModel into two files: an HTML file and a TypeScript file. Meanwhile, React embeds View and ViewModel components into one JSX file.

The generic MVVM pattern knowledge helps you to get started with any frontend framework so fast, write clean UI-manipulation code, and write well-testable code. Some developers may argue by saying that React is neither MVVM nor MVC, and it’s just a library to manipulate View. However, the way it lets developers write code is undoubtedly MVVM. Therefore, master MVVM, learn which code you should add to View and Controller.

2 - Following Generic Usability Principles

Some companies hire UI engineers and UX engineers also for frontend development if they care about usability factors. Some companies even maintain a separate UX team for improving the usability of their product. UI/UX developers typically work closely with prototyping, usability testing, CSS, and HTML. However, frontend developers often have to work with CSS and HTML too in most companies.

Therefore, knowing generic usability principles is helpful for all front-end engineers — regardless of the existence of UI/UX engineers in the team. For example, you don’t need to ask on which side you should place the OK button from the UI/UX team. Basic usability principles help us to make web applications more productive, user-friendly, and consistent for users.

Think about design consistency, components grouping, elements ordering, colors, text sizes, text styles, animations, responsive design when you work with your next front-end development task. Most application prototypes always don’t define all user-experience-related behaviors. Therefore, invest some time learning usability principles.

3 - Writing Clear Asynchronous Code

We can write both synchronous and asynchronous code in JavaScript. As we know, JavaScript is a single-threaded programming language. See how to the following for-loop freeze your browser tab (JavaScript thread) for a few seconds.

for(let i = 0; i < 10000000000; i++);

Therefore, we need to handle the reserved JavaScript thread efficiently. Most browser APIs follow an event-based or promise-based asynchronous design pattern due to this reason. For example, once you connect to a WebSocket server, JavaScript doesn’t wait until the connection is established, as shown below.

let ws = new WebSocket('ws://localhost:80');
//ws.send('Hello') will failws.addEventListener('open', () => {
  ws.send('Hello') // works
});

Therefore, our JavaScript codes often become a complex place where we subscribe to various browser API events that occur at different times. Writing clean code with asynchronous programming is hard. Some junior programmers tend to use random setTimeout delays to synchronize events without using appropriate event handlers. As a result, their users may experience various unexpected behaviors on different browsers, slow network connections, and low-end devices.

Put event handler registrations to an isolated function if possible, avoid delaying event callbacks with random timeouts, clean up event handlers when the application quits the context, don’t use legacy callback style code with the modern async/await pattern (if you need to use legacy code, promisify it), and avoid adding application logic inside inline event handlers to write clear asynchronous code.

4 - Knowing Browser APIs That Web Apps Often Need

Past browser versions came with basic DOM manipulation APIs. Later, W3C introduced many modern web APIs due to the popularity of JavaScript. Now we have client-side storage, native HTTP clients, text-to-speech, notification APIs for building user-friendly web applications. Also, all modern browsers support smart DOM APIs to perform tasks that we solved with hacky workarounds before.

For example, earlier, we had no efficient solution to detect DOM element resize events. But, now we can use the ResizeObserver API. Also, now we can use minimalist Fetch API to make RESTful requests without even using third-party legacy XHR-based libraries (Yes, Axios is XHR-based).

Before saying “it’s not possible in the web browser” to the user, check out the latest browser APIs. Now you can run CPU-intensive jobs with WebAssembly APIs. Also, you can write multi-threaded JavaScript operations with web workers. Noone browses the modern web using IE11 anymore, don’t think twice to use production-ready(non-experimental) web APIs.

5 - Understanding The Limits in the Front-End

Have you ever noticed slow and bloaty web applications? Web applications often become slow and bloaty for various reasons, such as heavy UI elements, non-CDN static assets loading, and bloaty libraries/frameworks. Web applications also perform too slow if you try to implement backend logic in the frontend. It’s okay to sort and filter a few data records on the client-side. But, don’t block the JavaScript thread by sorting and filtering many data records. Instead, hand over the sorting and filtering operations to the backend/database.

JavaScript offers a kind of fake parallelism via non-blocking operations. A browser tab instance doesn’t execute two JavaScript operations at once. Therefore, large data manipulation operations can slow down web applications.

Exessive event handlers can also slow down your application. Make sure to use event handlers efficiently and clean them when the application quits the context. Client-side resources are limited compared to your cloud computing backends. Nowadays, people still browse the internet with low-end and mid-end devices. Therefore, make sure to check the memory profile of your web application once you implement a quite heavy feature in the frontend. For example, the following memory profile gives a summary of the YouTube web application during video playback. Just compare the following memory usage statistics with the memory usage of the web application you are building.

#html #css #javascript #frontend #programming

What is GEEK

Buddha Community

Hire Frontend Developers

Create a new web app or revamp your existing website?

Every existing website or a web application that we see with an interactive and user-friendly interface are from Front-End developers who ensure that all visual effects come into existence. Hence, to build a visually appealing web app front-end development is required.

At HourlyDeveloper.io, you can Hire FrontEnd Developers as we have been actively working on new frontend development as well as frontend re-engineering projects from older technologies to newer.

Consult with experts: https://bit.ly/2YLhmFZ

#hire frontend developers #frontend developers #frontend development company #frontend development services #frontend development #frontend

How long does it take to develop/build an app?

With more of us using smartphones, the popularity of mobile applications has exploded. In the digital era, the number of people looking for products and services online is growing rapidly. Smartphone owners look for mobile applications that give them quick access to companies’ products and services. As a result, mobile apps provide customers with a lot of benefits in just one device.

Likewise, companies use mobile apps to increase customer loyalty and improve their services. Mobile Developers are in high demand as companies use apps not only to create brand awareness but also to gather information. For that reason, mobile apps are used as tools to collect valuable data from customers to help companies improve their offer.

There are many types of mobile applications, each with its own advantages. For example, native apps perform better, while web apps don’t need to be customized for the platform or operating system (OS). Likewise, hybrid apps provide users with comfortable user experience. However, you may be wondering how long it takes to develop an app.

To give you an idea of how long the app development process takes, here’s a short guide.

App Idea & Research

_Average time spent: two to five weeks _

This is the initial stage and a crucial step in setting the project in the right direction. In this stage, you brainstorm ideas and select the best one. Apart from that, you’ll need to do some research to see if your idea is viable. Remember that coming up with an idea is easy; the hard part is to make it a reality.

All your ideas may seem viable, but you still have to run some tests to keep it as real as possible. For that reason, when Web Developers are building a web app, they analyze the available ideas to see which one is the best match for the targeted audience.

Targeting the right audience is crucial when you are developing an app. It saves time when shaping the app in the right direction as you have a clear set of objectives. Likewise, analyzing how the app affects the market is essential. During the research process, App Developers must gather information about potential competitors and threats. This helps the app owners develop strategies to tackle difficulties that come up after the launch.

The research process can take several weeks, but it determines how successful your app can be. For that reason, you must take your time to know all the weaknesses and strengths of the competitors, possible app strategies, and targeted audience.

The outcomes of this stage are app prototypes and the minimum feasible product.

#android app #frontend #ios app #minimum viable product (mvp) #mobile app development #web development #android app development #app development #app development for ios and android #app development process #ios and android app development #ios app development #stages in app development

Developer Career Path: To Become a Team Lead or Stay a Developer?

For a developer, becoming a team leader can be a trap or open up opportunities for creating software. Two years ago, when I was a developer, I was thinking, “I want to be a team leader. It’s so cool, he’s in charge of everything and gets more money. It’s the next step after a senior.” Back then, no one could tell me how wrong I was. I had to find it out myself.

I Got to Be a Team Leader — Twice

I’m naturally very organized. Whatever I do, I try to put things in order, create systems and processes. So I’ve always been inclined to take on more responsibilities than just coding. My first startup job, let’s call it T, was complete chaos in terms of development processes.

Now I probably wouldn’t work in a place like that, but at the time, I enjoyed the vibe. Just imagine it — numerous clients and a team leader who set tasks to the developers in person (and often privately). We would often miss deadlines and had to work late. Once, my boss called and asked me to come back to work at 8 p.m. to finish one feature — all because the deadline was “the next morning.” But at T, we were a family.

We also did everything ourselves — or at least tried to. I’ll never forget how I had to install Ubuntu on a rack server that we got from one of our investors. When I would turn it on, it sounded like a helicopter taking off!

At T, I became a CTO and managed a team of 10 people. So it was my first experience as a team leader.

Then I came to work at D — as a developer. And it was so different in every way when it came to processes.

They employed classic Scrum with sprints, burndown charts, demos, story points, planning, and backlog grooming. I was amazed by the quality of processes, but at first, I was just coding and minding my own business. Then I became friends with the Scrum master. I would ask him lots of questions, and he would willingly answer them and recommend good books.

My favorite was Scrum and XP from the Trenches by Henrik Kniberg. The process at D was based on its methods. As a result, both managers and sellers knew when to expect the result.

Then I joined Skyeng, also as a developer. Unlike my other jobs, it excels at continuous integration with features shipped every day. Within my team, we used a Kanban-like method.

We were also lucky to have our team leader, Petya. At our F2F meetings, we could discuss anything, from missing deadlines to setting up a task tracker. Sometimes I would just give feedback or he would give me advice.

That’s how Petya got to know I’d had some management experience at T and learned Scrum at D.

So one day, he offered me to host a stand-up.

#software-development #developer #dev-team-leadership #agile-software-development #web-development #mobile-app-development #ios-development #android-development

Offshore Software Development - Best Practices

With the rise of globalization and the worldwide lockdown due to the pandemic, most of the work has been done by remote working processes and professionals from their homes. This lockdown has proved the efficiency of remote development and enhanced the trust in offshore software development industry.

To make the most out of the benefits of offshore software development, you should understand the crucial factors that affect offshore development. This is why you should read this guide for the best practices when hiring an offshore software development company. Despite the size and the industry of the business, offshore software development is not beneficial for every entrepreneur in many aspects to make the optimum use of talents in technology across the globe.

Here are some of the top reasons why offshore development is beneficial for your business.

• Offshore development teams can work on flexible timing to provide you with the best possible software development practices.
• Get access to the talents across the world from your home to develop the top of the line software with the help of offshore development companies.
• Assured high quality and next-generation technology expertise with duly NDA signed with respect to the priorities of the business.
• With flexible recruitment models, you can hire the freelance developers, remote development team, or an entire offshore development company with respect to the size of your business.
• Build high-end software applications from one corner of the world by hiring software developers across the world.
• Get immediate access to the best resources without hiring them on a permanent basis.

To avail of all these benefits, you should have clear goals, a list of requirements, and features that are mandatory for your software product.

Here are a few tips to help you find the best offshore software development company. Build a top-notch software application by following the listed best practices.

#web development #how to start offshore software development company #offshore meaning #offshore software development best practices #offshore software development company #offshore software development company in india #offshore software development cost #offshore software development statistics #outsource software development

8 Beginner Design Projects for Aspiring Front-end Developers

These are 8 projects with requirements and designs that you can do to add to your portfolio as a Front-end Developer. The order of these projects is from easy to intermediate level.

1. Reusable Button

One best way to start learning React or Vue is to make small components. By making a reusable button, you will learn about basic states and the most basics syntax.

2. Reusable Input

Making a reusable is not that simple, especially the Input component. You have to be wary of different states: Error, Focus, Accessibility, sizes, etc. But you will learn a lot from making them and it will be a big help in the journey of learning a library like React.

3. Windbnb - Airbnb small version

You will be making a small version of Airbnb.

Given a simple JSON file, your task is to create a listing with filter functions. You will learn managing state in Front-end library in React or Vue.

4. Todo App

Everyone knows Todo App, but did you ever try to make one?

You will practices skills like Array methods and managing states. I think it’s one of the best tasks to start learning a library, as it is not too difficult or too easy.

#web-development #frontend #learning-to-code #building-software #tutorials #front-end-development #frontend-development #programming