Article Introduction：The differences between reflow and redraw are: 1. Reflow is triggered when the DOM structure changes, while redrawing is triggered when the style attributes of the element change; 2. Reflow needs to recalculate the position and size of the element, while redrawing Only the style of the element needs to be redrawn; 3. Reflow will cause redrawing, but redrawing does not necessarily cause reflow.

2023-10-07 comment 0  2114

Article Introduction：How to optimize redrawing and reflow requires specific code examples 1. Background introduction In front-end development, redrawing and reflow are two common performance optimization issues. Redrawing refers to redrawing the appearance of an element, while reflowing refers to recalculating the position and size of an element. Since the browser needs to perform complex calculations and drawing operations, frequent redraws and reflows will seriously affect the performance and user experience of the page. Therefore, it is very important to optimize for redraw and reflow. 2. Reasons for redrawing and reflow Operations on DOM: When we operate on DOM, such as changing

2024-02-24 comment 0  510

Article Introduction：As a popular short video platform, Douyin interacts with users mainly through the comment function. Some users find that their comments and replies seem to be limited. Will the comments and replies on Douyin be limited? If the traffic is restricted, how to solve it? This article will discuss these two issues. 1. Will comments and replies on Douyin be limited? Whether Douyin comment replies will be limited depends on the specific rules and algorithms of the platform. Generally speaking, the Douyin platform will screen comment content through algorithms to ensure the quality of platform content and user experience. If the comment reply violates Douyin's regulations, such as spam, advertising information, etc., it may be restricted. If comments are replied too frequently, it may also trigger the platform’s current limiting mechanism. 2. Douyin comment replies are restricted

2024-06-03 comment 0  618

Article Introduction：Redrawing is more efficient than reflowing. If frequent reflow operations can be avoided, the performance of the page will be improved, because reflow is a relatively performance-consuming operation because it will cause the entire rendering tree to be rebuilt, while redrawing only requires redrawing elements to the page, and No need to recalculate the layout.

2023-10-18 comment 0  1324

Article Introduction：Decrypting the working principle of CSS reflow and repaint Introduction: In the process of web development, we often hear the concepts of CSS reflow (reflow) and repaint (repaint). Understanding how they work is crucial to optimizing web page performance and improving user experience. This article will delve into how CSS reflow and repaint work, and provide specific code examples to help readers better understand these two concepts. 1. How CSS reflow works 1.1 What is CSS reflow? CSS reflow refers to the browser recalculating elements.

2024-01-26 comment 0  1177

Article Introduction：What is the process for recycling mobile phones? Not only are there a large number of individual second-hand sellers on Zhuanzhuan, but the government also recycles mobile phones. Users who have unused mobile phones can sell them directly to the official. Many friends still don’t know what the process of recycling a mobile phone is like with Zhuanzhuan. Here is an introduction to the process of recycling a mobile phone with Zhuanzhuan. Let’s take a look at it together. What is the process of recycling a mobile phone with Zhuanzhuan? The first step is to click More. When we open the Zhuanzhuan software, click My in the lower right corner, and then find more functions. 2 In the second step, click on high-price recycling to enter more pages, and then we find the high-price recycling function and click to enter. 3 The third step is to enter the mobile phone model and enter the high-price recycling page. We click on the search box above to enter the model of our mobile phone. 4The fourth step, choose

2024-07-01 comment 0  478

Article Introduction：What are the best practices for optimizing CSS to reduce unnecessary reflows and repaints, especially in large-scale applications? 1. Reflow (Layout Recalculation): A reflow (also called layout or re-layout) occurs when the browser r

2024-10-18 comment 0  441

Article Introduction：The impacts of reflow and redraw include performance loss, page flickering, and page freezing. Detailed introduction: 1. Performance loss, reflow is more expensive than redrawing, because reflow needs to recalculate the layout, while redrawing only needs to redraw the appearance. Frequent reflow will cause the rendering speed of the page to slow down, affecting the user experience; 2. Page flickering. When reflow and redrawing occur frequently, the page may flicker. This is because when the browser re-renders the page, it will first clear the original content and then re-draw it. This process will cause the page to flicker. Flashing; 3. Page freezes, etc.

2023-10-13 comment 0  714

Article Introduction：When Does Reflow Occur in DOM Environments?The concept of reflow is crucial in understanding the dynamics of web pages built on Document Object...

2024-10-30 comment 0  1022

Article Introduction：Reflow and redraw in CSS refer to the two stages that cause the browser to recalculate and render the page when the size, position, color and other attributes of the element change in the browser. Since both reflow and redraw are The browser needs to recalculate and render the page, so they will bring performance losses. Therefore, when writing code, you should try to avoid frequent reflow and redrawing.

2023-10-18 comment 0  1410