Found a total of 10000 related content
Should I learn a js framework or master vanilla js first?
Article Introduction：The answer is: you should first master native JavaScript and then learn the framework. Because frameworks are just tools, JS is the foundation, not understanding JS will make it difficult to troubleshoot bugs and deal with interview questions; understanding native JS can help you better understand the design ideas of the framework; learning to be able to operate DOM, handle events, use Promise, understand this and prototype chains, and write simple interaction functions can start learning the framework; it is recommended to start with HTML CSS native JS first, learn while doing, read more documents, read less quick courses, and write projects by hand.
2025-07-01
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559
What is the difference between Shadow DOM and Virtual DOM
Article Introduction：ShadowDOM is a browser-native component encapsulation mechanism used to isolate structures and styles; VirtualDOM is a programming technique that optimizes UI updates. 1. ShadowDOM belongs to WebComponents, creates independent and isolated DOM trees to prevent style pollution, and is suitable for building reusable components such as or. 2. VirtualDOM is implemented by frameworks such as React, which simulates real DOM in memory, minimizes update operations through the Diff algorithm, and improves performance. 3. The core difference between the two is their different functions: ShadowDOM focuses on packaging, while VirtualDOM focuses on efficient updates; different implementation methods: the former is native browser support, while the latter is JS simulation; application field
2025-07-07
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401
Essential React Native Performance Tips and Tricks
Article Introduction：A practical guide to improving the performance of React Native applications
Key Points
Balancing the animation processing of JavaScript (JS) threads and main threads to improve application performance. Use the useNativeDriver attribute and InteractionManager to manage this balance.
Avoid unnecessary component re-rendering. Tips include: memorizing components and functions, using useCallback wisely, avoiding updating local states with Redux states, and avoiding inline functions.
Optimize images to increase application speed. Use SVG icons and images, WebP image format (lossless image quality), and cache images to speed up rendering.
Using stable npm packages and Fla
2025-02-08
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396
Simple State Management in JavaScript with Nanny State
Article Introduction：Nanny State: A streamlined Vanilla JS state management library
Nanny State is a mini library designed to simplify the process of building state-based web applications using native JavaScript. It's similar to React, but with less overhead, no need to learn new syntax. It uses a single application-wide state object instead of letting each component have its own state. It was inspired by HyperApp and has many similarities with Elm.
This article will explain how Nanny State works and demonstrate its functionality with several examples.
Key points:
Nanny State Introduction: Nanny S
2025-02-09
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314
What is a js library and which one should I learn?
Article Introduction：JavaScript library is a pre-written collection of code used to help developers complete common tasks efficiently. Its core functions include: 1. Simplify DOM operations; 2. Handle user interaction; 3. Send HTTP requests. Popular JS libraries include: 1.jQuery is suitable for small projects or legacy systems; 2.React is suitable for building dynamic user interfaces; 3.Vue.js is suitable for progressive integration; 4.Axios simplifies API calls. Learning suggestions: 1. If you want to master the basics, you must first learn native JS; 2. jQuery is available for small websites; 3. React is the first choice for modern front-end development; 4. Axios can be selected only if you need API calls. It is recommended that most developers give priority to learning React, but the premise is to master variables and cycle
2025-06-27
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207
Utilizing New HTML5 Input Types for Enhanced Forms
Article Introduction：The new HTML5 input type improves the form experience, the main methods include: 1. Use email and url types to realize automatic format verification and optimize the mobile keyboard; 2. Use number and range to process numerical input, which are suitable for accurate values ??and sliding selection respectively; 3. Use date series types to call the native date selector to improve time input efficiency. These features reduce the burden of front-end verification, but basic verification still needs to be supplemented by the server. Some types need to be combined with JS libraries to ensure compatibility on old devices.
2025-07-11
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377
HTML5 input type='date' formatting issues
Article Introduction：When using HTML5 inputtype="date", the core reasons and solutions for inconsistent date format display are as follows: 1. You must always use the YYYY-MM-DD format to set and get the value, otherwise it may cause recognition failure; 2. The browser display format varies according to system and region settings, but does not affect the actual value; 3. If you need to uniformly display the format, you should use a third-party library to replace the native controls; 4. Server-side verification is required and a fallback solution is provided for unsupported browsers, such as using the text type to cooperate with the JS plug-in to handle it.
2025-07-05
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576
HTML5 form validation custom error messages
Article Introduction：How to set custom error message with JavaScript? 1. Use the setCustomValidity() method combined with native form verification, and set prompts for specific input conditions through JavaScript. For example, when the username is less than 3 characters, it prompts "the username needs at least 3 characters"; 2. Combine HTML attributes (such as required, pattern) and JS supplementary verification, and return targeted prompts according to different reasons for verification failure. For example, when the email format is inconsistent, "the email must end with @example.com"; 3. Note that after each verification, you need to call setCustomValidity('') to clear the error message and select the appropriate event (input and i)
2025-07-12
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480
JS roundup of project ideas for building your portfolio
Article Introduction：To create a standout JavaScript portfolio, choosing a project that demonstrates technical capabilities and problem-solving capabilities is the most important thing. 1. Build a to-do application with local storage, covering task addition and deletion, completion status, local saving, and can add filtering, drag-and-drop sorting or dark modes. 2. Use the API to create a weather dashboard, obtain user locations, display weather data, and support city search and error handling. 3. Develop a mini game such as tic toe or memory matching game to exercise logic and state management. 4. Use native JS or framework to build a personal portfolio website, including about me, project display and contact forms. Ensure that each project has complete functions, clear documentation, diverse technologies and easy to run, and finally deploy and display your strength online.
2025-07-07
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263
Dave The Diver: How To Catch Spider Crabs
Article Introduction：In Dave The Diver, there are some creatures that are not easy to catch. Or, catch alive that is. The spider crab is one of those very species, making it seem like the only way to bring these crustaceans back up to land is to viciously crack them up w
2025-01-10
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790
Prepare for Interview Like a Pro with Interview Questions CLI
Article Introduction：Prepare for Interview Like a Pro with Interview Questions CLI
What is the Interview Questions CLI?
The Interview Questions CLI is a command-line tool designed for JavaScript learners and developers who want to enhance their interview
2025-01-10
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1420
Soft Deletes in Databases: To Use or Not to Use?
Article Introduction：Soft Deletes: A Question of DesignThe topic of soft deletes, a mechanism that "flags" records as deleted instead of physically removing them, has...
2025-01-10
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