Скачать или смотреть What Is The Difference Between NodeList And HTMLCollection In JavaScript? - JavaScript Toolkit

What Is The Difference Between NodeList And HTMLCollection In JavaScript? Are you working with JavaScript and want to understand how to select and manipulate groups of elements on a webpage? In this detailed video, we'll explore the differences between NodeList and HTMLCollection, two essential collections used in DOM manipulation. We'll start by explaining what each collection contains and how they differ in terms of the types of nodes they include. You'll learn how HTMLCollection only holds element nodes, whereas NodeList can include a variety of node types such as text, comments, and elements.

We'll also discuss how these collections behave when the webpage changes. HTMLCollection is typically live, meaning it updates automatically when the DOM is modified, while NodeList is usually static, capturing a snapshot of nodes at the moment of access. You'll discover how this impacts your code and when to choose one over the other. Additionally, we'll cover how to access items within these collections, highlighting the different methods available—like index-based access and namedItem—and how they can simplify your workflow.

Finally, we'll look at how these collections are obtained through various DOM methods, such as getElementsByClassName, getElementsByTagName, and querySelectorAll, helping you make informed decisions based on your project needs. Master these collections to make your DOM manipulation more predictable and efficient.

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