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Article Introduction：How to use native JS to achieve the effect of membership of enterprise WeChat tree organization? In modern web development, the display demand of tree structures is very common, especially...

2025-04-05 comment 0  519

Article Introduction：These 5 JS Random Moving Bubble Effects display cool animated “bubble” effects with few lines of code in JavaScript/jQuery. Check them out! 1. JS Bubble Effect #1 JS Bubble Effect 1 SourceDemo 2. JS Bubble Effect #2 JS Bubble Effect #2 Source

2025-02-23 comment 0  615

Article Introduction：The key to creating a dependency drop-down list in Excel is to understand the use of data structures and functions. There are three main methods. 1. First organize the basic data source, such as the classification and corresponding subitems are listed separately, and it is recommended to use naming scope management; 2. Use the "Data Verification" "INDIRECT" function to achieve linkage, provided that the main pull-down option is consistent with the named area name; 3. Use the FILTER function (suitable for Excel365 or 2021 and above), and achieve more flexible linkage through dynamic filtering. The formula is =UNIQUE (FILTER (sub-item column, classification column =main pull-down cell)). Pay attention to naming specifications, tidy data and function limitations to ensure smooth secondary linkage effect.

2025-07-22 comment 0  1000

Article Introduction：To insert a checkbox in Excel, first you need to call up the "Development Tools" tab: click "File" → "Options" → "Custom Ribbon", find "Development Tools" in the command list on the left and add it to the tab bar on the right to save it and restart Excel; then enter "Development Tools" → "Insert" → select "Check Box", click Place in the specified position of the table, you can edit or delete text, and copy multiple uses; finally, to achieve linkage effect, right-click the checkbox → "Format Control" → "Control" in the "Control" tab, and combine the IF function to achieve dynamic display such as "Completed" or "Incomplete".

2025-07-08 comment 0  461

Article Introduction：Can Pepe reach the top again? Interpreting PEPE price trend, Ethereum linkage effect and future potential Pepe price prospects: ETH rise ignits "Frog Rhapsody" Pepe coins are taking advantage of Ethereum to rebound strongly and sing all the way! With the recent increase of ETH approaching 40%, the meme coin market rekinds enthusiasm, is PEPE expected to hit a historical high? Let’s take a look at the latest market forecasts and key trends. Ethereum momentum has helped Pepe to leap Ethereum's recent strong price breakthrough, moving from $3,100 to $4,000, injecting vitality into the entire crypto ecosystem, and especially driving the performance of popular meme coins such as PEPE. Jake Gagain, a well-known crypto analyst, said ETH

2025-07-25 comment 0  576

Article Introduction：The weak rise in Dogecoin prices is mainly due to its lack of practical application scenarios, fading meme attributes and changing market sentiment, unlimited additional issuance supply model, and the overall market environment impact. Specifically, 1. The lack of killer applications leads to weak value support; 2. The new meme currency divert funds weaken the halo effect; 3. The inflation model exacerbates price pressure; 4. Mainstream currencies are more popular under market linkage. The recommended platforms for trading Dogecoin are: 1. Binance, with strong liquidity and comprehensive functions; 2. Ouyi, with outstanding derivative trading; 3. Huobi, with friendly interface and high security; 4. Gate.io, with rich currency types and multiple choices; 5. KuCoin, with diverse community active strategies; 6. Coinbase, with strong compliance protection

2025-07-04 comment 0  571

Article Introduction：Inline key JS and CSS can improve the speed of the first screen, but you need to pay attention to the methods. 1. Only inline the criticalCSS required for the first screen and JS that controls the behavior of the first screen; 2. Avoid large-scale content, it is recommended that the CSS should not exceed 15KB, and the JS should be smaller or not inlined; 3. Use and tag correctly, pay attention to the code execution order, and use defer or async attributes if necessary; 4. Compress the code and load non-critical resources asynchronously; 5. After inlining, you must use Lighthouse and other tools to verify the effect, and continuously optimize performance in combination with HTTP/2 and CDN.

2025-07-22 comment 0  317

Article Introduction：Common errors when using BootstrapNavbar include responsive design failures, style not meeting expectations, and JavaScript issues. 1. Make sure to correctly configure the responsive design using the navbar-expand-* class. 2. Overwrite the Bootstrap default style with a custom CSS file to achieve the expected effect. 3. Correctly reference Bootstrap's JS file and use a compatible jQuery version to avoid JavaScript errors. This will help you build a navigation bar that is both beautiful and efficient.

2025-06-03 comment 0  323

Article Introduction：The key to debugging HTML code is to master several core functions of ChromeDevTools. 1. Check the element structure: quickly locate the HTML position by right-clicking "Check", expand the node to view the nested structure, and double-click modifying content for temporary testing; 2. View and modify styles: View the applied CSS rules on the right side of the Elements panel, disable a certain style to observe the impact, or add a new style to test the effect; 3. Use the console to operate the DOM and execute JS, such as obtaining elements, modifying content, and testing whether the button event takes effect; 4. Responsive design debugging: Use the device toolbar to simulate different screen sizes, and comprehensively analyze layout problems in combination with the box model display and the Computed style panel.

2025-07-11 comment 0  1012

Article Introduction：In CSS, use:not() to negate the pseudo-class to select elements that do not contain specific class names, such as button:not(.primary) to select buttons that are not.primary; multiple exclusions need to be written in chains, such as button:not(.primary):not(.secondary); in JS, the same effect can also be achieved through querySelectorAll; it can also be used in combination with attributes and IDs, such as input:not([disabled]) or div:not(#header); it cannot be used in nested and has minimal performance impact.

2025-07-02 comment 0  435

Article Introduction：Explore the wonderful relationship between the S&P 500's repeated highs and the rise of meme coins such as TOKEN6900 and SPX6900. Is there a practical connection between them, or is it just the power of meme culture at work? As the S&P 500 index continues to break through historical highs recently, the cryptocurrency circle has been in full swing again, and meme coins such as TOKEN6900 and SPX6900 have also strengthened. But is this rise the result of market speculation or is it hidden deeper linkage effect? The rise in the S&P 500 ignites sentiment in the crypto market. The S&P 500 has performed strongly recently, frequently setting records, which has injected an optimistic atmosphere into the entire crypto market. Judging from historical data, the strong rebound in the stock market is often accompanied by the arrival of a bull market in cryptocurrency. There are studies that show

2025-07-04 comment 0  860

Article Introduction：DeclarativeShadowDOM is a way to directly define ShadowDOM through HTML tags, without the need for dynamic creation of JavaScript; 1. It allows direct declaration of ShadowDOM structure in HTML; 2. Improve Hydration performance, because the structure already exists, reduce JS initialization work; 3. Isolate styles to take effect earlier to avoid "flash style" problems; 4. Support frameworks such as React18, Lit, and SolidJS, especially suitable for SSR/SSG scenarios; 5. Pay attention to browser compatibility, construction process adjustment, DevTools debugging differences and style scope restrictions when using it.

2025-07-22 comment 0  741

Article Introduction：The key to creating a Gutenberg block is to understand its basic structure and correctly connect front and back end resources. 1. Prepare the development environment: install local WordPress, Node.js and @wordpress/scripts; 2. Use PHP to register blocks and define the editing and display logic of blocks with JavaScript; 3. Build JS files through npm to make changes take effect; 4. Check whether the path and icons are correct when encountering problems or use real-time listening to build to avoid repeated manual compilation. Following these steps, a simple Gutenberg block can be implemented step by step.

2025-06-28 comment 0  212

Article Introduction：Using pure CSS to achieve the accordion effect can be completed through HTML and tags. The specific steps are as follows: 1. Use and tags to achieve the expansion and collapse function, with clear semantics and support barrier-free access; 2. Set details borders, inner margins and other styles through CSS to unify the appearance, and hide the default arrows; 3. Note that multiple panels cannot be expanded at the same time through pure CSS restrictions, so JavaScript needs to be introduced to implement this function. In summary, basic functions do not require JS, but complex interactions still require script support.

2025-07-23 comment 0  628

Article Introduction：The core of LCP optimization is to accelerate the loading of key content on the first screen and reduce rendering blockage. 1. Load key resources on the first screen in advance, use WebP/AVIF format, fix image size, use lazy loading reasonably, and check the CDN acceleration effect; 2. Reduce blockage items on the key rendering path, split non-critical CSS, asynchronous loading of JS, and give priority to server-side rendering to speed up first screen rendering; 3. Use font loading strategies reasonably, use font-display:swap, streamline word weight and character set, compress font files, or use system fonts to reduce loading delay.

2025-07-17 comment 0  477

Article Introduction：To test page behavior in different time zones in Chrome, there are three ways to do it. 1. Use ChromeDevTools to simulate the time zone: Open DevTools → Click on three points → MoreTools → Sensors, check the overlay option in the DateandTime section and select the target time zone. This setting only takes effect in the current session; 2. Specify the time zone through the command line startup parameters: close all Chrome instances and execute chrome.exe--timezone="target time zone" to affect the entire browser instance; 3. Use JavaScript to overwrite the behavior of the Date object, and the fixed time value is used to accurately control the JS time.

2025-07-13 comment 0  190

Article Introduction：HTML attributes are the way to add extra information to HTML tags, used to configure elements or adjust their behavior. Common attributes include class, id, src, alt, placeholder, etc. They are written in the start tag in the form of name="value", such as href specifying the link address, and alt provides alternative text for the image. Attributes are widely used, such as required to set the input box, triggering JS functions (onclick), and boolean attributes (disabled, checked) to take effect without a value. When using it, you should use quotes to wrap the attribute value, especially if it contains spaces or special characters; specific attributes are only applicable to the corresponding tag; custom

2025-07-02 comment 0  183

Article Introduction：pointer-events is a CSS attribute that controls whether an element responds to pointer events. Common values include auto, none, visiblePainted, etc.; 1. It can be used to achieve "visual existence but not clickable", such as button disable effect; 2. Intercept clicks in the pop-up mask layer to prevent background elements from being operated; 3. Control multi-layer interactions and dynamically switch layers that can respond to events; 4. It is necessary to combine JS event management to avoid relying solely on pointer-events:none to prevent event triggering; 5. Mobile terminals need to pay attention to compatibility issues, and it is recommended to cooperate with opacity and event listeners to unified control of interaction logic.

2025-07-19 comment 0  293

Article Introduction：Browser caching strategies improve loading speed and reduce server stress. 1. Static resources such as pictures, CSS, and JS should use strong caches. Set Cache-Control:max-age=31536000, and cooperate with content hash naming to ensure that the update takes effect; 2. HTML files are suitable for negotiated cache or short-term strong cache. It is recommended that Cache-Control:no-cache or max-age=3600 be used to balance update timeliness and load speeds; 3. API requests do not cache by default, and short-term cache can be enabled in specific scenarios and avoid sensitive data cache; 4. Combined with version control and cache failure mechanism, ensure the file name by using version number, setting a short cache time, or actively clearing CDN cache.

2025-07-16 comment 0  419

Article Introduction：AR.js is a lightweight open source AR framework based on web technology. Users can experience AR content through their browser without installing an app. It uses HTML5 and JavaScript to combine A-Frame or Three.js to render 3D scenes, and realizes image recognition and overlay through the camera, supporting image recognition, position positioning and other functions. When using it, you can quickly start by following the following steps: 1. Introduce the JS library of A-Frame and AR.js; 2. Create the basic A-Frame scene and embed the AR configuration; 3. Use Hiro images as the default identification mark to test the effect. Frequently asked questions include that the camera cannot be accessed and that HTTPS and permissions are required. It is recommended to use high contrast diagrams and keep the light good.

2025-07-20 comment 0  520