How to Conditionally Add a Property to an Object in JavaScript
Łukasz Holeczek
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In JavaScript, dynamically adding properties to objects based on conditions is a common task. Whether you’re working with APIs, creating dynamic configurations, or simply managing data, knowing how to conditionally add properties can streamline your code. In this article, we’ll explore different methods to achieve this efficiently, ensuring you write clean, idiomatic code.
What is globalThis in JavaScript?
Łukasz Holeczek
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When working with JavaScript, the global object is a critical concept that provides access to the environment’s core functionalities. However, inconsistencies across different JavaScript environments, such as browsers, Node.js, and web workers, have long made accessing the global object challenging. To address this, the globalThis object was introduced as a unified mechanism to reliably access the global object in a consistent manner, regardless of the environment. This article explores what globalThis is, why it’s essential, and how to use it effectively.
Understanding the Difference Between NPX and NPM
Łukasz Holeczek
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In the ever-evolving landscape of JavaScript development, managing packages efficiently is crucial. Whether you’re a seasoned developer or just starting, understanding the tools at your disposal can significantly impact your workflow. Two such essential tools are npm and npx. While both are integral to the Node Package Manager ecosystem, they serve distinct purposes. This article delves into the difference between npm and npx, elucidating their roles, best practices, and practical applications to enhance your development experience.
Dealing with Sass Deprecation Warnings in Angular 19
Łukasz Holeczek
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With the release of Angular 19, developers are seeing significant improvements, new features, and streamlined workflows.
Along with these enhancements, you might encounter deprecation warnings from the Sass compiler when building your project. These warnings can be confusing, especially if they originate from third-party libraries.
Understanding the difference between `for...in` and `for...of` statements in JavaScript
Łukasz Holeczek
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As JavaScript continues to evolve, understanding the nuances of its looping mechanisms becomes essential for developers aiming to write efficient and bug-free code. Two commonly used looping statements, for...in and for...of, often lead to confusion due to their overlapping use cases. Grasping the difference between these loops is crucial for iterating over objects and iterable objects effectively, ensuring optimal performance and maintainability in your codebase.
How to convert a string to boolean in JavaScript
Łukasz Holeczek
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Working with different data types is a common task in JavaScript development. One frequent requirement is to convert a string to a boolean value. This article explores various methods to achieve this conversion, ensuring your code handles truthy values and false conditions accurately.
How to show or hide elements in React? A Step-by-Step Guide.
Łukasz Holeczek
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In modern web development, creating dynamic user interfaces is essential. The React library, a popular JavaScript tool, allows developers to build rich user interfaces by efficiently updating and rendering components based on data changes. One common requirement is to show or hide elements in React applications based on user interaction or application state. This article will guide you through different methods to show or hide elements in React using functional components, focusing on React 18+.
How to set focus on an input field after rendering in React
Łukasz Holeczek
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In modern React applications, managing focus on input elements is crucial for enhancing user experience. This practical guide will explore how to set focus on an input field after rendering in functional components using React 18+. We’ll delve into using the autoFocus attribute, the useRef hook, and the useEffect hook to achieve this.
Passing props to child components in React function components
Łukasz Holeczek
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Passing props in React is a fundamental concept that allows data to flow between components. When building user interfaces with React, you often need to pass additional props from a parent component to its child components. This article explores how to pass props to child components, focusing on function components and best practices.
How to loop inside React JSX
Łukasz Holeczek
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As a full stack developer working with React, mastering the art of looping inside React JSX is an essential skill. This guide will cover the different ways to render lists and elements using loops in React, focusing on the use of the map function, traditional loops, and best practices. Let’s explore how to create components dynamically and render lists efficiently using React JSX.
