gsap.timeline({\n onUpdate: () => {\n const xml = new XMLSerializer().serializeToString(svg);\n const src = `data:image\/svg+xml;base64,${btoa(xml)}`;\n animationFrames.push(src);\n },\n onComplete: () => {\n let inc = 0;\n const renderSvgDataToCanvas = () => {\n const virtualImage = new Image();\n virtualImage.src = animationFrames[inc];\n virtualImage.onload = () => {\n ctx.clearRect(0, 0, 400, 200);\n ctx.drawImage(virtualImage, 0, 0, 400, 200);\n canvasFrames.push(canvas.toDataURL('image\/jpeg'));\n inc++;\n if (inc < animationFrames.length) {\n renderSvgDataToCanvas();\n } else {\n \/\/console.log(canvasFrames); \/\/調試用\n generateGif();\n }\n };\n };\n renderSvgDataToCanvas();\n },\n})\n.fromTo('#rect', { x: -50 }, { duration: 2, x: 350, ease: 'power.ease2' });<\/pre>\nThis step is a little more complicated and requires one operation on each index of the animationFrames array. <\/p>\n
By using the recursive function renderSvgDataToCanvas, I can use the image data in the animationFrames array to write it to the canvas. Then, by using canvas.toDataURL('image\/jpeg'), I can store the rasterized data of each frame of the animation in the canvasFrames array. <\/p>\n
If you have added console.log in the onComplete function, you should see something similar to the following in the browser console. However, this time note the MIME type of the data: it is not svg xml, but image\/jpeg. This is important for the next work I will do. <\/p>\n
![\"How](\"https:\/\/img.php.cn\/upload\/article\/000\/000\/000\/173898187413228.jpg\")
<\/p>
Convert rasterized data to GIF<\/h2>\n
This is the last step, which involves passing each index of the canvasFrames array to a modern-gif. <\/p>\n
\n\n\n \n Simple<\/title>\n<\/head>\n<body>
<h1><a href="http://ipnx.cn/">亚洲国产日韩欧美一区二区三区,精品亚洲国产成人av在线,国产99视频精品免视看7,99国产精品久久久久久久成人热,欧美日韩亚洲国产综合乱</a></h1>\n <main>\n <svg id='svg'\n xmlns='http:\/\/www.w3.org\/2000\/svg'\n viewBox='0 0 400 200'\n width={400}\n height={200}\n style={{ border: '1px solid red' }}\n >\n <rect id='rect' x='0' y='75' width='50' height='50' fill='red'><\/rect>\n <\/svg>\n <canvas id='canvas' style={{ border: '1px solid blue' }} width={400} height={200}><\/canvas>\n <img src=\"https:\/\/img.php.cn\/upload\/article\/000\/000\/000\/173898187373194.jpg\" alt=\"How to Create Animated GIFs from GSAP Animations \" \/><\/p>\n<h2>將 SVG 數據轉換為光柵化數據<\/h2>\n<pre><code class=\"language-javascript\">gsap.timeline({\n onUpdate: () => {\n const xml = new XMLSerializer().serializeToString(svg);\n const src = `data:image\/svg+xml;base64,${btoa(xml)}`;\n animationFrames.push(src);\n },\n onComplete: () => {\n let inc = 0;\n const renderSvgDataToCanvas = () => {\n const virtualImage = new Image();\n virtualImage.src = animationFrames[inc];\n virtualImage.onload = () => {\n ctx.clearRect(0, 0, 400, 200);\n ctx.drawImage(virtualImage, 0, 0, 400, 200);\n canvasFrames.push(canvas.toDataURL('image\/jpeg'));\n inc++;\n if (inc < animationFrames.length) {\n renderSvgDataToCanvas();\n } else {\n \/\/console.log(canvasFrames); \/\/調試用\n generateGif();\n }\n };\n };\n renderSvgDataToCanvas();\n },\n})\n.fromTo('#rect', { x: -50 }, { duration: 2, x: 350, ease: 'power.ease2' });<\/pre>\n<p>Using modernGif.encode, you can pass an array of data to frames and define a delay for each frame, I chose to add a delay of 0 seconds. <\/p>\nThe next part of the <p> code handles converting modernGif.ecode data and converting it to \"another\" MIME type, this time image\/gif. <\/p>\n<p>Once I have the final \"blob\" data representing an animated GIF, I convert it to a URL and then set the src and href of the image and link elements so that I can view and download the GIF in my browser. <\/p>\n<p><img src=\"https:\/\/img.php.cn\/upload\/article\/000\/000\/000\/173898187673605.jpg\" alt=\"How to Create Animated GIFs from GSAP Animations \"><\/p>\n<h2>Frame rate<\/h2>\n<p>You may notice that the final GIF runs quite slowly, because animations running in the browser usually play 60 frames per second (fps) while GIFs are usually much slower at 12 or 24 fps. <\/p>\n<p>To \"discard\" some animation frames, I use array filters and JavaScript remainder operators to determine if the index can be divisible by a certain number, in my case, I choose 6. Indexes that cannot be divisible by 6 will be filtered out from the array. The generated animated GIF is a bit clumsy, but it plays much faster. <\/p>\n<p>I have added the <code>generateGif<\/code> method to the <code>filter<\/code> function to implement the adjustment of the frame rate. <\/p>\n<p>That's it, you can convert GSAP SVG animations to animated GIFs via HTML canvas! <\/p>\n<p>If you have any questions about anything described in this article, feel free to find me on Twitter\/X: @PaulieScanlon. <\/p>"} </script>
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<a href="#How-to-convert-GSAP-animation-to-GIF" title="How to convert GSAP animation to GIF" >How to convert GSAP animation to GIF</a>
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<a href="#Convert-rasterized-data-to-GIF" title="Convert rasterized data to GIF" >Convert rasterized data to GIF</a>
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<span>How to Create Animated GIFs from GSAP Animations</span>
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<h1 class="Articlelist_txts_title">How to Create Animated GIFs from GSAP Animations</h1>
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<span id="wjcelcm34c" class="Articlelist_txts_time">Feb 08, 2025 am 10:31 AM</span>
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<p>Convert GSAP animations to animated GIFs: a step-by-step guide to using modern-gifs</p>
<p><strong>Key Points</strong></p>
<ul>
<li>You can use a process to convert GSAP animations into animated GIFs that involve capturing SVG data and writing them to the HTML canvas every time you adjust the tween. This SVG data can then be converted into rasterized image data, which is then used by modern-gif to create each frame of the animated GIF. </li>
<li>The conversion process involves multiple steps, including capturing SVG data, converting SVG data into rasterized data, and finally converting the rasterized data into GIF. Each step involves specific code modifications and the use of arrays to store captured and transformed data. </li>
<li>Because the frame rates between browser animations and GIFs are usually different, the frame rates of the final GIFs may be slower than the original animation. To speed up GIFs, you can use array filters and JavaScript remainder operators to determine whether the index can be divisible by a number, thus discarding some frames. </li>
</ul>
<p>This article explains how to convert animations created using GSAP into animated GIFs using modern-gif. </p>
<p>The following is a preview of an animation I made before: </p>
<p><img src="/static/imghw/default1.png" data-src="https://img.php.cn/upload/article/000/000/000/173898187154231.jpg" class="lazy" alt="How to Create Animated GIFs from GSAP Animations "></p>
<p>In the link below, you can find a live preview of all the code you will refer to in this article: </p>
<ul>
<li>? Preview: <ul>
<li>Index: gsap-animation-to-gif.netlify.app</li>
<li>Simple version: gsap-animation-to-gif.netlify.app/simple</li>
</ul>
</li>
<li>?? Code base: github.com/PaulieScanlon/gsap-animation-to-gif</li>
</ul>
<p>There are two "pages" in the code base. index contains all the code for the GIF above, simple is the starting point for the steps described in this article. </p>
<h2 id="How-to-convert-GSAP-animation-to-GIF">How to convert GSAP animation to GIF</h2>
<p>The method I use to convert GSAP animations to GIFs involves capturing SVG data and writing it to an HTML canvas at each "update" of the tween. Once the tween is done, I can convert the SVG data into rasterized image data, which modern-gif can use to create every frame of an animated GIF. </p>
<h2 id="Beginner">Beginner</h2>
<p>This is the code I used in my simple example, and I will use it to explain each step required to create an animated GIF from a GSAP animation: </p>
<pre class='brush:php;toolbar:false;'><!DOCTYPE html>
<html lang='en'>
<head>
<meta charset='utf-8' />
<title>Simple</title>
</head>
<body>
<main>
<svg id='svg'
xmlns='http://www.w3.org/2000/svg'
viewBox='0 0 400 200'
width={400}
height={200}
style={{ border: '1px solid red' }}
>
<rect id='rect' x='0' y='75' width='50' height='50' fill='red'></rect>
</svg>
<canvas id='canvas' style={{ border: '1px solid blue' }} width={400} height={200}></canvas>
<img src="/static/imghw/default1.png" data-src="https://img.php.cn/upload/article/000/000/000/173898187373194.jpg" class="lazy" alt="How to Create Animated GIFs from GSAP Animations " /></p>
<h2>將 SVG 數據轉換為光柵化數據</h2>
<pre class="brush:php;toolbar:false"><code class="javascript">gsap.timeline({
onUpdate: () => {
const xml = new XMLSerializer().serializeToString(svg);
const src = `data:image/svg+xml;base64,${btoa(xml)}`;
animationFrames.push(src);
},
onComplete: () => {
let inc = 0;
const renderSvgDataToCanvas = () => {
const virtualImage = new Image();
virtualImage.src = animationFrames[inc];
virtualImage.onload = () => {
ctx.clearRect(0, 0, 400, 200);
ctx.drawImage(virtualImage, 0, 0, 400, 200);
canvasFrames.push(canvas.toDataURL('image/jpeg'));
inc++;
if (inc < animationFrames.length) {
renderSvgDataToCanvas();
} else {
//console.log(canvasFrames); //調試用
generateGif();
}
};
};
renderSvgDataToCanvas();
},
})
.fromTo('#rect', { x: -50 }, { duration: 2, x: 350, ease: 'power.ease2' });</pre>
<p>This step is a little more complicated and requires one operation on each index of the animationFrames array. </p>
<p> By using the recursive function renderSvgDataToCanvas, I can use the image data in the animationFrames array to write it to the canvas. Then, by using canvas.toDataURL('image/jpeg'), I can store the rasterized data of each frame of the animation in the canvasFrames array. </p>
<p>If you have added console.log in the onComplete function, you should see something similar to the following in the browser console. However, this time note the MIME type of the data: it is not svg xml, but image/jpeg. This is important for the next work I will do. </p>
<p><img src="/static/imghw/default1.png" data-src="https://img.php.cn/upload/article/000/000/000/173898187413228.jpg" class="lazy" alt="How to Create Animated GIFs from GSAP Animations " /></p><h2 id="Convert-rasterized-data-to-GIF">Convert rasterized data to GIF</h2>
<p> This is the last step, which involves passing each index of the canvasFrames array to a modern-gif. </p>
<pre class='brush:php;toolbar:false;'><!DOCTYPE html>
<html lang='en'>
<head>
<meta charset='utf-8' />
<title>Simple</title>
</head>
<body>
<main>
<svg id='svg'
xmlns='http://www.w3.org/2000/svg'
viewBox='0 0 400 200'
width={400}
height={200}
style={{ border: '1px solid red' }}
>
<rect id='rect' x='0' y='75' width='50' height='50' fill='red'></rect>
</svg>
<canvas id='canvas' style={{ border: '1px solid blue' }} width={400} height={200}></canvas>
<img src="/static/imghw/default1.png" data-src="https://img.php.cn/upload/article/000/000/000/173898187373194.jpg" class="lazy" alt="How to Create Animated GIFs from GSAP Animations " /></p>
<h2>將 SVG 數據轉換為光柵化數據</h2>
<pre class="brush:php;toolbar:false"><code class="javascript">gsap.timeline({
onUpdate: () => {
const xml = new XMLSerializer().serializeToString(svg);
const src = `data:image/svg+xml;base64,${btoa(xml)}`;
animationFrames.push(src);
},
onComplete: () => {
let inc = 0;
const renderSvgDataToCanvas = () => {
const virtualImage = new Image();
virtualImage.src = animationFrames[inc];
virtualImage.onload = () => {
ctx.clearRect(0, 0, 400, 200);
ctx.drawImage(virtualImage, 0, 0, 400, 200);
canvasFrames.push(canvas.toDataURL('image/jpeg'));
inc++;
if (inc < animationFrames.length) {
renderSvgDataToCanvas();
} else {
//console.log(canvasFrames); //調試用
generateGif();
}
};
};
renderSvgDataToCanvas();
},
})
.fromTo('#rect', { x: -50 }, { duration: 2, x: 350, ease: 'power.ease2' });</pre>
<p>Using modernGif.encode, you can pass an array of data to frames and define a delay for each frame, I chose to add a delay of 0 seconds. </p>
The next part of the <p> code handles converting modernGif.ecode data and converting it to "another" MIME type, this time image/gif. </p>
<p>Once I have the final "blob" data representing an animated GIF, I convert it to a URL and then set the src and href of the image and link elements so that I can view and download the GIF in my browser. </p>
<p><img src="/static/imghw/default1.png" data-src="https://img.php.cn/upload/article/000/000/000/173898187673605.jpg" class="lazy" alt="How to Create Animated GIFs from GSAP Animations "></p>
<h2 id="Frame-rate">Frame rate</h2>
<p>You may notice that the final GIF runs quite slowly, because animations running in the browser usually play 60 frames per second (fps) while GIFs are usually much slower at 12 or 24 fps. </p>
<p>To "discard" some animation frames, I use array filters and JavaScript remainder operators to determine if the index can be divisible by a certain number, in my case, I choose 6. Indexes that cannot be divisible by 6 will be filtered out from the array. The generated animated GIF is a bit clumsy, but it plays much faster. </p>
<p>I have added the <code>generateGif</code> method to the <code>filter</code> function to implement the adjustment of the frame rate. </p>
<p>That's it, you can convert GSAP SVG animations to animated GIFs via HTML canvas! </p>
<p>If you have any questions about anything described in this article, feel free to find me on Twitter/X: @PaulieScanlon. </p><p>The above is the detailed content of How to Create Animated GIFs from GSAP Animations. For more information, please follow other related articles on the PHP Chinese website!</p>
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<a href="http://ipnx.cn/ai/ai-clothes-remover" title="AI Clothes Remover" class="phpmain_tab2_mids_top_img">
<img onerror="this.onerror=''; this.src='/static/imghw/default1.png'"
onerror="this.onerror=''; this.src='/static/imghw/default1.png'"
class="lazy" data-src="https://img.php.cn/upload/ai_manual/001/246/273/173411552797167.jpg?x-oss-process=image/resize,m_fill,h_50,w_50" src="/static/imghw/default1.png" alt="AI Clothes Remover" />
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<a href="http://ipnx.cn/ai/ai-clothes-remover" title="AI Clothes Remover" class="phpmain_tab2_mids_title">
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<a href="http://ipnx.cn/ai/clothoffio" title="Clothoff.io" class="phpmain_tab2_mids_top_img">
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<img onerror="this.onerror=''; this.src='/static/imghw/default1.png'"
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<a href="http://ipnx.cn/faq/laravel-tutori" title="Laravel Tutorial" class="phpgenera_Details_mainR4_bottom_title">Laravel Tutorial</a>
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<div id="wjcelcm34c" class="phpgenera_Details_mainR4_bottoms_infos">
<img src="/static/imghw/eyess.png" alt="" />
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<a href="http://ipnx.cn/faq/php-tutorial" title="PHP Tutorial" class="phpgenera_Details_mainR4_bottom_title">PHP Tutorial</a>
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<div id="wjcelcm34c" class="phpgenera_Details_mainR4_bottoms_infos">
<img src="/static/imghw/eyess.png" alt="" />
<span>1488</span>
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<img src="/static/imghw/tiezi.png" alt="" />
<span>72</span>
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<span>268</span>
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<span>130</span>
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<a href="http://ipnx.cn/faq/1796828191.html" title="What is event bubbling and capturing in the DOM?" class="phphistorical_Version2_mids_title">What is event bubbling and capturing in the DOM?</a>
<span id="wjcelcm34c" class="Articlelist_txts_time">Jul 02, 2025 am 01:19 AM</span>
<p class="Articlelist_txts_p">Event capture and bubble are two stages of event propagation in DOM. Capture is from the top layer to the target element, and bubble is from the target element to the top layer. 1. Event capture is implemented by setting the useCapture parameter of addEventListener to true; 2. Event bubble is the default behavior, useCapture is set to false or omitted; 3. Event propagation can be used to prevent event propagation; 4. Event bubbling supports event delegation to improve dynamic content processing efficiency; 5. Capture can be used to intercept events in advance, such as logging or error processing. Understanding these two phases helps to accurately control the timing and how JavaScript responds to user operations.</p>
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<div id="wjcelcm34c" class="phphistorical_Version2_mids">
<a href="http://ipnx.cn/faq/1796828216.html" title="A definitive JS roundup on JavaScript modules: ES Modules vs CommonJS" class="phphistorical_Version2_mids_img">
<img onerror="this.onerror=''; this.src='/static/imghw/default1.png'"
src="/static/imghw/default1.png" class="lazy" data-src="https://img.php.cn/upload/article/001/431/639/175139088179400.jpg?x-oss-process=image/resize,m_fill,h_207,w_330" alt="A definitive JS roundup on JavaScript modules: ES Modules vs CommonJS" />
</a>
<a href="http://ipnx.cn/faq/1796828216.html" title="A definitive JS roundup on JavaScript modules: ES Modules vs CommonJS" class="phphistorical_Version2_mids_title">A definitive JS roundup on JavaScript modules: ES Modules vs CommonJS</a>
<span id="wjcelcm34c" class="Articlelist_txts_time">Jul 02, 2025 am 01:28 AM</span>
<p class="Articlelist_txts_p">The main difference between ES module and CommonJS is the loading method and usage scenario. 1.CommonJS is synchronously loaded, suitable for Node.js server-side environment; 2.ES module is asynchronously loaded, suitable for network environments such as browsers; 3. Syntax, ES module uses import/export and must be located in the top-level scope, while CommonJS uses require/module.exports, which can be called dynamically at runtime; 4.CommonJS is widely used in old versions of Node.js and libraries that rely on it such as Express, while ES modules are suitable for modern front-end frameworks and Node.jsv14; 5. Although it can be mixed, it can easily cause problems.</p>
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<div id="wjcelcm34c" class="phphistorical_Version2_mids">
<a href="http://ipnx.cn/faq/1796829560.html" title="How does garbage collection work in JavaScript?" class="phphistorical_Version2_mids_img">
<img onerror="this.onerror=''; this.src='/static/imghw/default1.png'"
src="/static/imghw/default1.png" class="lazy" data-src="https://img.php.cn/upload/article/001/253/068/175156097152256.jpg?x-oss-process=image/resize,m_fill,h_207,w_330" alt="How does garbage collection work in JavaScript?" />
</a>
<a href="http://ipnx.cn/faq/1796829560.html" title="How does garbage collection work in JavaScript?" class="phphistorical_Version2_mids_title">How does garbage collection work in JavaScript?</a>
<span id="wjcelcm34c" class="Articlelist_txts_time">Jul 04, 2025 am 12:42 AM</span>
<p class="Articlelist_txts_p">JavaScript's garbage collection mechanism automatically manages memory through a tag-clearing algorithm to reduce the risk of memory leakage. The engine traverses and marks the active object from the root object, and unmarked is treated as garbage and cleared. For example, when the object is no longer referenced (such as setting the variable to null), it will be released in the next round of recycling. Common causes of memory leaks include: ① Uncleared timers or event listeners; ② References to external variables in closures; ③ Global variables continue to hold a large amount of data. The V8 engine optimizes recycling efficiency through strategies such as generational recycling, incremental marking, parallel/concurrent recycling, and reduces the main thread blocking time. During development, unnecessary global references should be avoided and object associations should be promptly decorated to improve performance and stability.</p>
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<div id="wjcelcm34c" class="phphistorical_Version2_mids">
<a href="http://ipnx.cn/faq/1796836217.html" title="How to make an HTTP request in Node.js?" class="phphistorical_Version2_mids_img">
<img onerror="this.onerror=''; this.src='/static/imghw/default1.png'"
src="/static/imghw/default1.png" class="lazy" data-src="https://img.php.cn/upload/article/001/431/639/175234432058757.jpg?x-oss-process=image/resize,m_fill,h_207,w_330" alt="How to make an HTTP request in Node.js?" />
</a>
<a href="http://ipnx.cn/faq/1796836217.html" title="How to make an HTTP request in Node.js?" class="phphistorical_Version2_mids_title">How to make an HTTP request in Node.js?</a>
<span id="wjcelcm34c" class="Articlelist_txts_time">Jul 13, 2025 am 02:18 AM</span>
<p class="Articlelist_txts_p">There are three common ways to initiate HTTP requests in Node.js: use built-in modules, axios, and node-fetch. 1. Use the built-in http/https module without dependencies, which is suitable for basic scenarios, but requires manual processing of data stitching and error monitoring, such as using https.get() to obtain data or send POST requests through .write(); 2.axios is a third-party library based on Promise. It has concise syntax and powerful functions, supports async/await, automatic JSON conversion, interceptor, etc. It is recommended to simplify asynchronous request operations; 3.node-fetch provides a style similar to browser fetch, based on Promise and simple syntax</p>
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<div id="wjcelcm34c" class="phphistorical_Version2_mids">
<a href="http://ipnx.cn/faq/1796828190.html" title="var vs let vs const: a quick JS roundup explainer" class="phphistorical_Version2_mids_img">
<img onerror="this.onerror=''; this.src='/static/imghw/default1.png'"
src="/static/imghw/default1.png" class="lazy" data-src="https://img.php.cn/upload/article/001/431/639/175139032133478.jpg?x-oss-process=image/resize,m_fill,h_207,w_330" alt="var vs let vs const: a quick JS roundup explainer" />
</a>
<a href="http://ipnx.cn/faq/1796828190.html" title="var vs let vs const: a quick JS roundup explainer" class="phphistorical_Version2_mids_title">var vs let vs const: a quick JS roundup explainer</a>
<span id="wjcelcm34c" class="Articlelist_txts_time">Jul 02, 2025 am 01:18 AM</span>
<p class="Articlelist_txts_p">The difference between var, let and const is scope, promotion and repeated declarations. 1.var is the function scope, with variable promotion, allowing repeated declarations; 2.let is the block-level scope, with temporary dead zones, and repeated declarations are not allowed; 3.const is also the block-level scope, and must be assigned immediately, and cannot be reassigned, but the internal value of the reference type can be modified. Use const first, use let when changing variables, and avoid using var.</p>
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<div id="wjcelcm34c" class="phphistorical_Version2_mids">
<a href="http://ipnx.cn/faq/1796836292.html" title="JavaScript Data Types: Primitive vs Reference" class="phphistorical_Version2_mids_img">
<img onerror="this.onerror=''; this.src='/static/imghw/default1.png'"
src="/static/imghw/default1.png" class="lazy" data-src="https://img.php.cn/upload/article/001/431/639/175234579081669.jpg?x-oss-process=image/resize,m_fill,h_207,w_330" alt="JavaScript Data Types: Primitive vs Reference" />
</a>
<a href="http://ipnx.cn/faq/1796836292.html" title="JavaScript Data Types: Primitive vs Reference" class="phphistorical_Version2_mids_title">JavaScript Data Types: Primitive vs Reference</a>
<span id="wjcelcm34c" class="Articlelist_txts_time">Jul 13, 2025 am 02:43 AM</span>
<p class="Articlelist_txts_p">JavaScript data types are divided into primitive types and reference types. Primitive types include string, number, boolean, null, undefined, and symbol. The values are immutable and copies are copied when assigning values, so they do not affect each other; reference types such as objects, arrays and functions store memory addresses, and variables pointing to the same object will affect each other. Typeof and instanceof can be used to determine types, but pay attention to the historical issues of typeofnull. Understanding these two types of differences can help write more stable and reliable code.</p>
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<div id="wjcelcm34c" class="phphistorical_Version2_mids">
<a href="http://ipnx.cn/faq/1796828085.html" title="How to traverse the DOM tree (e.g., parentNode, children, nextElementSibling)?" class="phphistorical_Version2_mids_img">
<img onerror="this.onerror=''; this.src='/static/imghw/default1.png'"
src="/static/imghw/default1.png" class="lazy" data-src="https://img.php.cn/upload/article/001/253/068/175138796239016.jpg?x-oss-process=image/resize,m_fill,h_207,w_330" alt="How to traverse the DOM tree (e.g., parentNode, children, nextElementSibling)?" />
</a>
<a href="http://ipnx.cn/faq/1796828085.html" title="How to traverse the DOM tree (e.g., parentNode, children, nextElementSibling)?" class="phphistorical_Version2_mids_title">How to traverse the DOM tree (e.g., parentNode, children, nextElementSibling)?</a>
<span id="wjcelcm34c" class="Articlelist_txts_time">Jul 02, 2025 am 12:39 AM</span>
<p class="Articlelist_txts_p">DOM traversal is the basis of web page element operation. Common methods include: 1. Use parentNode to obtain the parent node, and can be chained to find it upward; 2. children return a collection of child elements, accessing the first or end child elements through the index; 3. nextElementSibling obtains the next sibling element, and combines previousElementSibling to realize the same-level navigation. Practical applications such as dynamically modifying structures, interactive effects, etc., such as clicking the button to highlight the next brother node. After mastering these methods, complex operations can be achieved through combination.</p>
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