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🚀 Understanding JavaScript's "this" Keyword Ever wondered why JavaScript's "this" keyword behaves so unpredictably? It's not about where you write it, but how the function gets called. The key lies in execution contexts and the call stack. When JavaScript runs, it creates contexts that track what's happening. The value of "this" depends on whether you call a function as a standalone, a method, or a constructor. Learn how execution contexts determine "this" and avoid those frustrating reference errors. Read the full explanation: https://piccalil.li/blog/javascript-when-is-this/

​​Від сьогодні стартує набір на новий сезон у програму Become A Developer. Розгляд заяв триватиме до 6 лютого 2026. Саме до цієї дати можна заповнити анкету за посиланням bit.ly/BAD-26. Лист із усіма подальшими інструкціями отримаєте після реєстрації. Відбір кандидатів проходить у 3 етапи: 1) онлайн-тестування (логіка, англійська, технічні знання) і тестове завдання. 2) базова технічна співбесіда зі співробітниками Навчального центру. Запрошення на співбесіду в порядку черги отримують ті, хто успішно виконав умови попереднього етапу. Не баріться із виконанням тестів і тестового, кожен день наші співробітники виділяють обмежений час на інтерв’ю із кандидатами. 3) поглиблене технічне інтерв’ю з майбутнім ментором. Нагадаємо умови: ✅ Це тримісячна програма стажування, за підсумками якої успішні випускники отримають запрошення на позицію розробника. ✅ Проходить в форматі офіційного працевлаштування на півставки - ви зможете поєднувати його з навчанням. ✅ Підходить для студентів старших курсів / випускників профільних спеціальностей або тих, хто вже має досвід програмування. ✅ Програма дає можливість досконально вивчити сучасні підходи до розробки ПЗ і отримати практичний досвід в реальних (або максимально наближених до реальних) проєктах під керівництвом досвідчених наставників. ✅ Стажування проходить в дистанційному режимі, орієнтуйтеся, що в день доведеться витрачати від 4 годин, в робочий час. Підсумуємо: анкета (=реєстрація до 6 лютого 2026) —> деталі в листі —> тестування + тестове завдання —> співбесіда зі співробітниками Навчального центру —> технічне інтерв’ю з майбутнім ментором (керівником відділу розробки). Групи стартують по мірі формування команд. Детальніше - bit.ly/BAD-26

📝 Console.log Formatting Tips Making your console.log output more practical and readable is easier than you might think. Chrome DevTools offers several ways to format and style your log messages. You can use format specifiers like %s for strings, %i for integers, and %f for floating-point numbers to structure your output cleanly. Want to add some visual flair? Use the %c format specifier followed by CSS styles to color and style your messages right in the console. For Node.js developers, ANSI escape sequences are another great option for adding color to your logs. These simple techniques help make debugging sessions more efficient by making important information stand out clearly. Source: https://developer.chrome.com/docs/devtools/console/format-style

📏 The CSS Height Puzzle Have you ever wondered why percentage-based heights in CSS often don't work as expected? Josh Comeau explains this common frustration. The secret is that percentage heights rely on the parent element having an explicit height defined. If the parent doesn't have a set height, the browser has no reference point, so the percentage won't work. This creates a chicken-and-egg problem where elements can't determine each other's heights. The solution? Always ensure parent elements have explicit heights when using percentage-based heights for children, or use modern layout methods like Flexbox or Grid that handle this more intuitively. Read the full explanation here: https://www.joshwcomeau.com/css/height-enigma/

✂️ Margin-Trim: A CSS Layout Helper A new CSS property called margin-trim has been introduced. It allows a parent container to automatically trim the margins of its child elements when those margins push against the container's edges. This simplifies layout creation by eliminating the need to manually remove margins from first and last child elements, making your CSS cleaner and more maintainable. Currently, this property is only supported in Safari browsers, but it's a promising addition to the CSS toolkit for creating more efficient layouts. Read more on WebKit's blog: https://webkit.org/blog/16854/margin-trim/

👩‍💻 Puck is a visual editor for React developed by Measured Corporation Ltd! 🌟 It allows developers to create and edit React components using an intuitive interface, simplifying the process of developing user interfaces. Puck offers drag-and-drop capabilities for components, customizing their properties, and visually editing the application structure.

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🎮 CSS Hell: 15 challenging CSS puzzles Test your CSS skills with 15 tricky puzzles where you need to align pegs with their corresponding holes by adding the right CSS properties to divs. Each puzzle presents a visual challenge that requires creative use of CSS to solve. Think you know CSS? This game will put your skills to the test with increasingly difficult challenges that will make you think outside the box. Try it out and see how many puzzles you can solve! https://csshell.com/

🦧 State, Logic, And Native Power: CSS Wrapped 2025 CSS Wrapped 2025 is out! We’re entering a world where CSS can increasingly handle logic, state, and complex interactions once reserved for JavaScript. It’s no longer just about styling documents, but about crafting dynamic, ergonomic, and robust applications with a native toolkit more powerful than ever. Here’s an unpacking of the highlights and how they connect to the broader evolution of modern CSS.

🛠️ JSON Mock Data Generator Need realistic JSON test data for your app or API? Check out JSON Mocker - a simple web tool that lets you generate mock JSON data based on your schema. This free online editor makes it easy to create reusable JSON mock data schema files. You just define your data structure, and it generates realistic test data that matches your specifications. No complicated setup - it works right in your browser. Perfect for developers testing APIs, building prototypes, or creating sample data for documentation. Check it out here: https://laurawebdev.github.io/json-mocker/

📄 JSON Mocker Need to generate JSON data that follows a specific schema? JSON Mocker is an online tool that creates mock JSON data based on your schema definition. It's perfect for developers who need test data, want to mock APIs, or just need realistic JSON for their projects without manually creating it. You can use it right in your browser without any installation or setup required. Check it out here: https://laurawebdev.github.io/json-mocker/

🧰 JSON Mocker Need realistic test data for your projects? JSON Mocker is a free online tool that generates JSON data based on your schema. Instead of creating fake data manually, you can define what your JSON should look like using a reusable schema, and the tool will automatically generate matching data for testing and development. The web-based editor makes it easy to create and save schema templates, perfect for developers who need consistent mock data across different projects. Check it out here: https://laurawebdev.github.io/json-mocker/

🌐 CSS Relative Colors: A New Way to Handle Colors in CSS Learn about CSS relative colors - a modern approach to working with colors that lets you manipulate and adjust color values directly in your stylesheets. Instead of defining colors as static values, relative colors allow you to base new colors on existing ones. For example, you can take a border color and create a background color that's a lighter or darker version of it, adjust opacity, or change saturation - all with simple CSS calculations. The guide covers syntax, practical use cases, and demonstrates how relative colors work with HSL color space. You'll see how to generate color variations dynamically without needing to manually calculate new color values. Check out the interactive guide with examples: https://ishadeed.com/article/css-relative-colors

🔍 AI's Impact on Jobs: Winners and Losers Analysis of 180 million job listings reveals which professions are really feeling the AI squeeze: Creative roles got hit hardest from 2023 to 2025: - Graphic designer vacancies dropped by 33% - Photographer jobs decreased by 28% - Copywriters and editors also saw about 28% fewer openings But there's good news for some tech roles: - Demand for ML specialists surged by 40% - Robotics experts and programmers remain safe – AI actually helps them work better rather than replacing them - The only IT field seeing fewer jobs? Frontend developers Source: xCode Journal