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Medium

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How to make a Universal Audio Apollo™ wireless Volume Control (with a twist)

Shortcut Labs has released a major update to Flic Hub Studio for the Hub LR.
The update allows mapping of the Flic Twist button's actions to custom events.
Flic Hub Studio integrates support for Matter and IR and comes with preconfigured modules.
By using Flic Twist, a wireless volume control can be created for Universal Audio Apollo audio interfaces.

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8 Likes

Medium

188

The Dual Sheet Model incorporates real world data: Updated code

The code snippet demonstrates the Dual Sheet Model (DSM) incorporating real-world data and equations for dark energy studies.
Real-world data for dark energy values and Hubble parameters are provided for analysis and comparison.
The code includes interpolations, optimizations, and calculations of observables like effective w(z) and H(z).
Functions for potentials, densities, Hubble parameters, derivatives, and chi-squared objective are defined and utilized.
The code optimizes parameters for the DSM using the Nelder-Mead method and presents best-fit parameters lambda, m, and m_tilde.
Simulations are run with the optimized parameters to compute w(z) and H(z) values for comparison with observational data.
Plots are generated to show the results of w(z) and H(z) from the DSM simulation against observational data from DESI, CMB, Planck, and Union3.
The plots illustrate the Dark Energy Equation of State and the Hubble Parameter comparison between DSM and observations.

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Dev

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Create A Sample Resume And Push to GitHub Pages

Install Git on your computer.
Set up Git and configure your environment.
Clone your GitHub repository and push your code to it.
Host your website on GitHub Pages.

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PlanetPython

372

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Python Morsels: Checking whether iterables are equal in Python

You can check whether iterables contain the same elements in Python with equality checks, type conversions, sets, Counter, or looping helpers.
If we have two lists and we wanted to know whether the items in these two lists are the same, we could use the equality operator (==).
The same thing works for comparing tuples.
But what if we wanted to compare a list and a tuple? We can't use a simple equality check for that.

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Hackernoon

139

Image Credit: Hackernoon

Frontend Testing for Busy Engineers: A Guide

Frontend developers often work on projects with no or minimal tests, impacting the effectiveness of testing. The article discusses maximizing test impact with minimal effort, challenges of applying the testing pyramid to frontend development, and effective practices for testing web applications efficiently.
Key areas to test in frontend applications include HTML/JSX Markup, requests to backend APIs, state management, and frontend business logic. The focus should be on ensuring correct UI rendering and component behavior, as well as testing API calls and state management changes.
The traditional testing pyramid comprises unit tests, integration tests, and end-to-end (E2E) tests. The pyramid suggests prioritizing unit tests for ease of implementation. However, strict adherence to this model may not always be feasible in frontend development.
While some projects deliberately choose not to use automated tests due to various reasons like early-stage startups or legacy systems, essential tools like static analysis and error monitoring can enhance code quality and development efficiency.
As frontend applications become more complex, manual regression testing becomes impractical, eventually leading back to automated testing. E2E testing is highlighted as a valuable testing approach for checking application functionality from an end user's perspective.
E2E testing tools like Playwright, Cypress, Selenium, and Puppeteer are recommended for implementing tests to validate user stories and critical business functions. Prioritizing smoke tests, critical path tests, and continuously expanding test coverage are key E2E testing strategies.
Despite the benefits of E2E testing, challenges such as flaky tests, test run speed, and managing test data exist. In cases where E2E testing faces challenges, turning them into integration tests with mocked APIs can offer a simpler alternative.
Integration tests, focusing on testing the frontend in isolation from the backend by mocking API calls, offer a faster and more stable testing alternative compared to E2E tests. However, they provide lower reliability guarantees as they exclude the entire stack.
Unit tests play a role in testing complex logic, library code, and aiding refactoring and legacy code support. The article suggests minimizing the number of unit tests by focusing on critical logic and not writing tests for trivial functionality or highly covered areas.
An optimal automated testing strategy for the frontend involves utilizing static analysis and error monitoring tools, prioritizing E2E tests for key scenarios, leveraging integration tests when E2E tests face challenges, and minimizing the number of unit tests to focus on critical and complex logic.
Effective frontend testing emphasizes quality over quantity and focuses on critical scenarios and sections of the application to ensure proper functionality and user satisfaction.

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8 Likes

Medium

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Building My Digital Portfolio — Chapter 6: Personalizing Content and Dynamic Project Integration

The about.html page has been updated to reflect who the person is.
The social media section on the website now only includes LinkedIn and Medium with icons.
Videos have been added for all eight projects on the work-list.html page, along with titles and short descriptions.
Each project now opens on its own dedicated page (single-work.html) with detailed information, achieved through storing project data and rendering it dynamically.

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4 Likes

Dev

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Day 1127 : Traffic Jam

Started the day with an all hands meeting and got clarification on upcoming projects.
Merged a pull request and made changes to the Vue x Web Components starter project.
Worked on integrating Web Components into an Angular starter app.
Experienced a traffic jam while heading to a developer event.

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2 Likes

Medium

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Refresher: Angular’s @Input and @Output Decorators

Angular's @Input and @Output decorators enable two-way communication between parent and child components.
Using @Input, the parent component can share data with its child component.
Using @Output, the child component can notify the parent component about events.
These decorators enhance component communication in Angular, making it more dynamic and interactive.

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4 Likes

Dev

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Sun Header With Rising Logo Bouncing Letters Using Trig.js ☀️

Trig.js allows you to create stunning animated headers where each letter bounces into place as you scroll.
The background sun scales and rotates dynamically in this example.
With Trig.js, the scroll animations are smoothly controlled and the .selected class is applied selectively to each letter based on the scroll position.
The CSS transition and class manipulation ensure that the rising effect of the selected letter is smooth and visually appealing.

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2 Likes

Medium

300

How to Make Money from Writing: A Beginner’s Guide to Turning Words into Wealth

Freelance writing is a fast way to earn money by providing content for companies.
Starting a blog can lead to passive income with the potential to become a full-time job.
Self-publishing e-books on platforms like Amazon KDP can earn up to 70% royalties per sale.
Copywriting is a high-paying skill that can earn beginners $100 - $500 per project, and experienced writers $1,000+ per sales page.

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18 Likes

Medium

404

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The cursed trumpet. The strangest artifact from King Tutankhamun

In 1922, archaeologist Howard Carter discovered the intact tomb of King Tutankhamun with about 5000 artifacts.
Among the artifacts were a pair of trumpets believed to be used for summoning fighters to battle or announcing the start of a war.
In a 1939 radio broadcast, the silver trumpet broke while trying to insert a new mouthpiece, and the performance was not completed.
The trumpet was repaired, and another musician attempted the radio recording.

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24 Likes

Dev

359

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Which Programming Language Should You Learn First? A Data-Backed Guide

Choosing your first programming language is a big decision, as it can shape your learning curve, career opportunities, and enjoyment of coding.
Some key factors to consider include your end goal (web development, mobile apps, data science/AI, or game dev), job market demand (Python, JavaScript, Java, Go, Rust), beginner-friendliness (Python, JavaScript, Ruby), and community & resources.
The top three recommendations for beginners are Python (simple syntax, versatile), JavaScript (runs everywhere, weird quirks), and Java (strong job market, object-oriented foundation).
Avoid starting with C/C++, Haskell, or Assembly, as they are too low-level or complex for beginners.

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21 Likes

Dev

278

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Rust Concurrency: Fearless Concurrency

Concurrent programs run multiple tasks by utilizing threads, which handle execution units within programs.
Rust's ownership and type safety systems help in solving memory safety and concurrency issues, catching errors at compile time and ensuring code runs safely in multithreaded environments.
Multithreading in modern operating systems allows programs to handle multiple tasks simultaneously but can lead to issues like race conditions and deadlocks.
Rust provides thread-handling mechanisms like the 1:1 threading model, as seen in the example of creating and managing threads using spawn and join in Rust.
Rust utilizes move closures to transfer ownership of variables between threads, ensuring memory safety and preventing borrowing issues.
Message passing in Rust is facilitated through channels, with multiple producer single consumer (MPSC) and multiple producer multiple consumer (MPMC) patterns supported.
Rust employs mutexes and Arc pointers to implement shared-memory concurrency primitives for safe data access across multiple threads.
The Send and Sync traits in Rust are foundational for safe concurrency, allowing for the transfer and sharing of data between threads.
Rust's concurrency models guarantee thread safety, aided by the type system, borrow checker, and marker traits like Send and Sync.
Leapcell, a hosting platform, offers support for Rust projects and emphasizes cost efficiency, developer experience, scalability, and high performance.

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16 Likes

Medium

152

Issue with WebSockets Implementation in Spring Boot (Backend) and Android (Frontend)

Spring Boot, combined with the conciseness of Kotlin, provides a streamlined approach to WebSocket implementation.
Setting up Spring Boot for WebSocket support involves adding necessary dependencies and creating a configuration class.
Kotlin coroutines improve performance and responsiveness of WebSocket servers, allowing handling of concurrent connections efficiently.
Android client uses OkHttp library to establish WebSocket connection with Spring Boot backend, managing connection lifecycle and UI updates.

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9 Likes

Dev

413

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Unlocking Hidden Performance Bottlenecks in Golang using GoFr: The Underrated Power of pprof

In high-traffic production environments, unexpected performance bottlenecks can degrade user experience and threaten system reliability.
GoFr, a powerful Golang framework, offers built-in observability, but deeper debugging is sometimes necessary.
pprof, an underrated tool, provides real-time performance profiling and actionable insights.
By combining GoFr and pprof, developers can uncover hidden inefficiencies and optimize services for peak performance at scale.

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24 Likes

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