Found a total of 10000 related content
What is a tag in HTML? Give examples of common HTML tags.
Article Introduction：HTML tags structure and style webpages; common tags include <html>, <body>, <h1>-<h6>, <p>, , <img>, <div>, <span>. Tags affect page layou
2025-03-19
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894
Learn Linux Dir Command Examples with Options
Article Introduction：This article shows some examples of using the dir command to list the contents of a directory. The dir command is not a commonly used command in Linux, but it works less like the ls command which most Linux users prefer to use.
[ You might also like:
2025-06-27
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569
HTML in Action: Examples of Website Structure
Article Introduction：HTML is used to build websites with clear structure. 1) Use tags such as, and define the website structure. 2) Examples show the structure of blogs and e-commerce websites. 3) Avoid common mistakes such as incorrect label nesting. 4) Optimize performance by reducing HTTP requests and using semantic tags.
2025-05-05
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774
[Examples] Quickly Learn to Use Simple & Common PowerShell Cmdlet
Article Introduction：This post composed on php.cn official webpage gives a brief review of PowerShell cmdlet commands. It introduces its meaning, frequently used terms, common examples, as well as differences compared to the command lines in other environments.
2025-07-22
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712
Most Common SSH Command Usage and Configuration in Linux
Article Introduction：Brief: In this guide, we will discuss the common use cases of SSH. We will also discuss commonly used SSH configurations that can be used in day-to-day life to boost your productivity.
Secure Shell (SSH) is a widely adopted network protocol, which al
2025-06-28
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376
Top HTML Interview Questions for Frontend Developers
Article Introduction：Hey there, frontend enthusiasts! ? Whether you're gearing up for your first interview or brushing up for your next big opportunity, mastering HTML is a must. Here's a curated list of the most common HTML interview questions with practical examples. L
2025-01-14
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Python String Methods, with Examples
Article Introduction：Detailed explanation of Python string method: efficient processing of text data
Python provides rich string methods for handling string objects such as formatting, searching, and modifying without changing the original string because strings are immutable. This article will introduce some commonly used Python string methods and explain them in combination with examples.
Characteristics of strings
Strings are an integral part of programming languages ??and one of the most commonly used data types in Python. They are sequences of immutable Unicode characters that can be enclosed in single, double or triple quotation marks. Immutability means that once a string is created, it cannot be modified directly; any modification operation will create a new word
2025-02-15
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907
Useful CSS Selectors You Might Not Know
Article Introduction：CSS selectors play a vital role in web development and are used for web page styling. While many people are familiar with common selectors, there are some less common but very useful selectors. What are CSS selectors? CSS selectors are patterns used to select elements on a web page for styling. They can locate elements based on attributes, classes, IDs, etc. Commonly used CSS selectors The following are some commonly used selectors: Element selector: locates all elements of a specific type. For example, to style all elements: div{border:1pxsolidblack;} Class Selector: Selects elements with a specific class. If we have a class called "text-large"
2025-01-14
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804
Using useEffect for Fetching Data in React
Article Introduction：Using useEffect for Fetching Data in React
In React, the useEffect hook is commonly used for performing side effects in functional components. Fetching data from an API or server is one of the most common side effects, and useEffect makes it ea
2024-12-25
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811
How do I use the element to represent variables?
Article Introduction：Tags in HTML are used to represent variables in mathematical expressions, programming contexts, or scientific formulas. They have semantic meanings and help browsers and assistive technologies identify content as variables. It should be used when it is used in mathematical formulas (such as E=mc2), variables in programming code snippets, and scientific equations; it is displayed in italics by default, but can be customized with CSS; common errors include abuse of it as an emphasis tool or redundant use in code blocks; practical application examples cover mathematical problem solving, programming tutorials, and physical formula descriptions.
2025-06-25
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865
Javascript - Array methods
Article Introduction：Detailed explanation of JavaScript array methods
This article will delve into the commonly used array methods in JavaScript, covering elements addition and deletion, search, conversion, sorting, combination and iteration, etc., and provide code examples to help you better understand and apply these methods.
1. Adding and deleting elements
push(): Add elements to the end of the array.
let fruits = ["apple", "banana"];
fruits.push("cherry");
console.log(fruits); // Output: [&quo
2025-01-23
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925
Difference between `` and `` in HTML5 markup.
Article Introduction：In HTML, do not use backquotes (`), but double quotes (") or single quotes (') to wrap attribute values. The difference is in context and syntax rules. 1. Double quotes are the most commonly used way to wrap HTML attribute values, especially when the attribute values ??contain single quotes to avoid escapes; 2. Single quotes can also be used to wrap attribute values, which are commonly found in JavaScript strings to avoid double quote escapes, or personal preferences; 3. Backquotes are only used for JavaScript template strings or Markdown code marks, and are not used in standard HTML syntax, so backquotes should not be wrapped in HTML files; 4. Regardless of which quotation marks are selected, the project should be consistent.
2025-07-04
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973
How to start HTML for beginners?
Article Introduction：The steps to learn HTML include: 1. Understand the basic concepts and structure of HTML; 2. Write a simple HTML page; 3. Master commonly used HTML tags and attributes; 4. Know how to view and debug web pages in the browser. HTML is the foundation of front-end development. By learning these steps, you can start from scratch and gradually master web design skills.
2025-04-03
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1174
Beginners Guide to DOM Selection with jQuery
Article Introduction：As a front-end developer or designer, you must use a Document Object Model (DOM) in your daily projects. In recent years, with the improvement of JavaScript technology, selecting elements and applying dynamic functions in the DOM has become increasingly common. Therefore, we need to master the knowledge of using DOM elements to avoid conflicts and optimize performance. jQuery is one of the most popular and commonly used JavaScript libraries, with advanced DOM selection and filtering capabilities. In this article, we will explore how to filter DOM elements by considering the actual scenario with the help of jQuery. Let's get started.
Important points
jQuery is a commonly used JavaScr
2025-02-22
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794
Set Theory in Practice: Leveraging `array_intersect` and `array_diff`
Article Introduction：Array comparison is commonly used for array_intersect() and array_diff() functions. 1.array_intersect() returns the common values of the two arrays, such as finding the common role of the user; 2.array_diff() returns the values in the first array that are not in other arrays, used to detect missing or redundant items; 3. Both are based on loose comparisons and retain the original keys, pay attention to the processing of parameter order and keys; 4. Actual applications include data synchronization, permission verification and input filtering; 5. For strict type or key-value comparison, array_intersect_assoc() or array_diff_assoc() should be used; these functions improve code readability and efficiency,
2025-08-02
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591
Understanding CSS Sibling Selectors: A Beginner's Guide
Article Introduction：CSS provides a wide range of selectors for targeting specific elements in an HTML document. While class and ID selectors are commonly used, they can’t always target elements based on their relationship to other elements. This is where CSS sibling sel
2024-10-27
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868
