The editor of Downcodes brings you detailed explanations on various methods of embedding HTML code in JavaScript. This article will delve into four commonly used methods: `document.write()`, `innerHTML`, `insertAdjacentHTML()`, as well as DOM element creation and node operations, supplemented by sample code to help you understand the usage of each method. Advantages, disadvantages and applicable scenarios. In addition, the article also includes answers to frequently asked questions, such as how to use template strings, the `createElement` method and the `innerHTML` attribute to embed HTML code, hoping to answer your doubts in practical applications.
Embedding HTML code in JS can be implemented in a variety of ways, such as using document.write(), manipulating innerHTML, using insertAdjacentHTML(), and utilizing DOM element creation and node operations. Among them, operating innerHTML is a very common method, which allows you to directly inject HTML strings into specified elements, thereby achieving rapid embedding and updating of HTML content. Compared with other DOM manipulation methods, innerHTML is popular for its simplicity and flexibility. However, it should be noted that frequent manipulation of innerHTML may cause page redrawing and reflowing, affecting performance.
The Document.write() method can be used to write HTML expressions or JavaScript code to the document. It is usually executed during the document loading process, but it may also bring some side effects. For example, using it after the document is loaded will cause the entire page to be rewritten.