JavaScript DOM (Document Object Model)

所在平台: Udemy

课程主页: https://www.udemy.com/course/javascript-dom-document-object-model/

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课程简介

**课程名称:** JavaScript DOM (文档对象模型) **课程概述:** 本课程专为希望学习如何使用 JavaScript 使网页动态化和交互化的初学者设计。您将深入了解文档对象模型 (DOM),这是 HTML 和 XML 文档的编程接口。DOM 将文档结构表示为节点树,每个节点代表文档的元素或属性。通过 JavaScript DOM API,您可以访问和操作网页中的元素。 **核心学习内容:** * **DOM 简介:** 理解 DOM 的概念及其在网页开发中的作用。 * **元素选取:** 学习使用 `document.querySelector()` 和 `document.querySelectorAll()` 等方法,根据 CSS 选择器精确地选取页面元素。 * **值获取与设置:** 掌握如何获取和修改元素的文本内容、属性值等。 * **CSS 样式操作:** 学会通过 JavaScript 动态地为元素添加、移除或修改 CSS 样式。 * **事件处理:** 利用 `addEventListener()` 方法,响应用户的各种交互事件,如点击、键盘输入等。 * **类名管理:** 使用 `classList` 属性方便地管理元素的 CSS 类。 * **遍历 DOM 结构:** 学习使用 `parentElement`、`parentNode`、`children`、`childNodes`、`firstChild`、`lastChild`、`nextSibling` 和 `previousSibling` 等属性来导航和访问 DOM 树中的节点。 * **动态创建和插入元素:** 掌握 `document.createElement()`、`createTextNode()`、`appendChild()`、`insertBefore()`、`insertAdjacentElement()`、`insertAdjacentHTML()` 和 `replaceChild()` 等方法,实现动态创建和插入新元素。 * **元素移除和克隆:** 学会使用 `removeChild()` 方法移除元素,以及使用 `cloneNode()` 方法复制节点。 * **DOM 检查:** 了解 `contains()`、`hasAttribute()`、`hasChildNodes()` 和 `isEqualNode()` 等方法,用于检查元素的状态和关系。 **学习目标:** 通过本课程的学习,您将能够熟练运用 JavaScript DOM API,实现网页元素的动态选取、内容修改、样式调整、事件响应以及动态内容的创建和管理,从而构建出更具交互性和吸引力的网页。

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课程详情

Learn how to make webpages Dynamic and Interactive using JavaScript to influence and manipulate page elements.it is a completely beginner-friendly course who want to learn about JavaScript DOM and BOM.The Document Object Model (DOM) is a programming interface for HTML and XML documents. It represents the structure of a document as a tree of nodes, with each node representing an element or attribute of the document. The JavaScript DOM API allows developers to access and manipulate the elements of a web page.One of the most common ways to use the DOM API is to select elements from the document using the document.querySelector() or document.querySelectorAll() methods. These methods take a CSS selector as an argument and return the first or all elements that match the selector, respectively.Once an element is selected, it can be manipulated using the various properties and methods of the DOM API. For example, the innerHTML property can be used to set the content of an element, while the classList property can be used to add, remove, or toggle CSS classes on an element.The DOM API also allows developers to create new elements and append them to the document. The document.createElement() method can be used to create a new element, while the appendChild() method can be used to add it to the document.The DOM API also provides the ability to listen for events, such as clicks or key presses, on elements. The addEventListener() method can be used to attach an event listener to an element, which will be called when the event occurs.In summary, the JavaScript DOM API provides a rich set of tools for interacting with the elements of a web page. It allows developers to select and manipulate elements, create new elements, and listen for events on elements. Understanding and utilizing the DOM API is crucial for building dynamic and interactive web pages.What will students learn in your course?JavaScript DOM Introduction TutorialJavaScript DOM Targeting Methods TutorialJavaScript DOM Get & Set Value Methods TutorialJavaScript DOM querySelector & querySelectorAll TutorialJavaScript DOM CSS Styling Methods TutorialJavaScript addEventListener Method TutorialJavaScript classList Methods TutorialJavaScript parentElement & parentNode Method TutorialJavaScript Children & childNodes Methods TutorialJavaScript firstChild & lastChild Method TutorialJavaScript nextSibling & previous sibling Method TutorialJavaScript createElement & createTextNode TutorialJavaScript appendChild & insertBefore TutorialJavaScript insertAdjacentElement & insertAdjacentHTML TutorialJavaScript replaceChild & removeChild TutorialJavaScript cloneNode TutorialJavaScript Contains Method TutorialJavaScript hasAttribute & hasChildNodes TutorialJavaScript isEqualNode Tutorial

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