How to Remove Elements from a JavaScript Array
Łukasz Holeczek
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Removing elements from an array in JavaScript is a fundamental skill every developer should master. Whether you need to remove the first element, remove the last element, or filter out unwanted elements based on a specified value, understanding multiple techniques to remove array elements ensures your code remains clean and efficient. In this post, we will explore a few methods to remove element from array in javascript, explain how they work on the original array or when they create a new array, and show you the potential pitfalls.
What is the Difference Between Null and Undefined in JavaScript
Łukasz Holeczek
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If you’ve ever wondered about the differences in JavaScript null vs undefined, read on. In the JavaScript programming language, the difference between null and undefined can seem confusing to many developers. Although both represent the absence of a meaningful value, they are distinct types in JavaScript with their own inner workings. Learning how to handle null/undefined scenarios is crucial because these two values frequently appear in everyday coding tasks. By understanding undefined in JavaScript and null in real-world cases, you can avoid unexpected bugs, properly manage data types, and maintain cleaner code. This article will walk you through the subtle difference between null and undefined, and offer best practices for handling them.
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How to Manage Date and Time in Specific Timezones Using JavaScript
Łukasz Holeczek
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Handling date and time across different timezones is a common yet intricate task for JavaScript developers. Whether you’re working on global applications or time-sensitive services, precise date and time manipulation in specific timezones is essential. JavaScript provides native methods and modern APIs to simplify this task, but challenges like daylight saving time, timezone offsets, and formatting can still cause issues.
How to sort an array of objects by string property value in JavaScript
Łukasz Holeczek
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Sorting an array of objects by a specific property is a common requirement in JavaScript, especially when dealing with complex data structures in real-world applications. In this article, we’ll explore how to sort an array of objects by string values using JavaScript’s sort method. By the end of this guide, you’ll understand how to implement a custom comparison function and sort arrays efficiently.
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.
