Gathering sand into a tower, making a little progress every day
⭐ Column introduction
Front-end entry journey: Explore the wonderful world of web development Welcome to the front-end entry journey! If you are interested, you can subscribe to this column! This column is tailor-made for those who are interested in web development and have just entered the front-end field. Whether you are a complete novice or a developer with some basic knowledge, here will provide you with a systematic and friendly learning platform. In this column, we will update it every day in the form of questions and answers, presenting you with selected front-end knowledge points and answers to frequently asked questions. Through the Q&A format, we hope to respond more directly to readers’ questions about front-end technology and help everyone gradually establish a solid foundation. Whether it's HTML, CSS, JavaScript, or various common frameworks and tools, we'll explain concepts in a simple and easy-to-understand way, and provide practical examples and exercises to solidify what you've learned. At the same time, we will also share some practical tips and best practices to help you better understand and apply various technologies in front-end development.
Not only that, we will also regularly launch some practical project tutorials so that you can apply the knowledge you have learned to actual development. Through the practice of actual projects, you will be able to better understand the workflow and methodology of front-end development, and develop your own ability to solve problems and develop independently. We believe that only by continuous accumulation and practice can we truly master front-end development technology. So, get ready for the challenge and bravely embark on this front-end entry journey! Whether you are looking for a career change, upskilling or fulfilling personal interests, we are dedicated to providing you with the best learning resources and support. Let's explore the wonderful world of web development together! Join the front-end entry journey and become an outstanding front-end developer! Let’s start the front-end journey . The picture below introduces other columns that the blogger is outputting in addition to this column; (Skip the picture below and let’s start today’s text!!!)
⭐ What are HTTP status codes?
The HTTP status code is a three-digit code returned by the server in response to an HTTP request. This code represents the processing result of the request and is usually used to instruct the client how to handle the request it makes. HTTP status codes consist of three digits divided into five different categories, each with a different meaning.
Here are some common HTTP status codes and their meanings:
⭐ 1xx - Informational status code
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100 Continue : Indicates that the server has received the initial part of the request and is waiting for the client to send the rest. Usually used when the client needs to send large data.
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101 Switching Protocols : Indicates that the server has understood the client's request and will notify the client of switching protocols through the Upgrade message header.
⭐ 2xx - success status code
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200 OK : Indicates that the server successfully processed the request and returned the requested data.
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201 Created : Indicates that the request was successful and the server has created a new resource, usually returned after a POST request.
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204 No Content : Indicates that the request was successfully processed, but the server does not need to return any response body. Usually returned after a DELETE request.
⭐ 3xx - redirect status code
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301 Moved Permanently : Indicates that the requested resource has been permanently moved to a new URL.
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302 Found (Temporary Redirect) : Indicates that the requested resource has been temporarily moved to a new URL. It is an HTTP/1.0 specification, but is often used to implement temporary redirects.
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304 Not Modified : Indicates that the client's cached copy is still valid and can be used directly without obtaining new data from the server.
⭐ 4xx - Client error status code
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400 Bad Request : Indicates that the server cannot understand the client's request, usually because the request syntax is incorrect.
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401 Unauthorized : Indicates that the request requires user authentication. The client usually needs to provide a valid username and password.
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403 Forbidden : Indicates that the server understands the request but refuses to execute it, usually due to permission issues.
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404 Not Found : Indicates that the requested resource was not found on the server.
⭐ 5xx - Server error status code
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500 Internal Server Error : Indicates that the server encountered an unexpected error and was unable to complete the request.
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502 Bad Gateway : Indicates that the server, acting as a gateway or proxy, received an invalid response from the upstream server.
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503 Service Unavailable : Indicates that the server is currently unable to handle the request, usually due to maintenance or overload.
These are some common examples of HTTP status codes, each status code has a specific meaning and helps the client understand the outcome of the request. In actual development, developers can debug and handle HTTP requests based on status codes.
⭐Write at the end
This column is suitable for a wide range of readers, and is suitable for front-end beginners; or those who have not learned front-end and are interested in front-end, or back-end students who want to better show themselves and expand some front-end knowledge points during the interview process, so If you have the basics of front-end and follow this column, it can also help you to a great extent to check for omissions and fill in the gaps. Since the blogger himself does the content output, if there are any flaws in the article, you can contact me through the left side of the homepage. , let’s make progress together, and at the same time, I also recommend several columns to everyone. Interested partners can subscribe: In addition to the columns below, you can also go to my homepage to see other columns;
Front-end games (free) This column will take you into a world full of creativity and fun. By using the basic knowledge of HTML, CSS and JavaScript, we will build various interesting page games together. Whether you are a beginner or have some front-end development experience, this column is for you. We'll start with the basics and walk you through the skills you need to build a page game. Through practical cases and exercises, you will learn how to use HTML to build page structure, use CSS to beautify the game interface, and use JavaScript to add interactive and dynamic effects to the game. In this column, we'll cover various types of mini-games, including maze games, brick breaker, snake, minesweeper, calculators, plane battles, tic-tac-toe, puzzles, mazes, and more. Each project guides you through the building process in concise and clear steps, with detailed explanations and code examples. At the same time, we will also share some optimization tips and best practices to help you improve page performance and user experience. Whether you are looking for an interesting project to exercise your front-end skills, or are interested in page game development, the front-end games column will be your best choice. Click to subscribe to the front-end games column
Vue3 Transparent Tutorial [From Zero to One] (Paid) Welcome to the Vue3 Transparent Tutorial! This column aims to provide everyone with comprehensive technical knowledge related to Vue3. If you have some Vue2 experience, this column can help you master the core concepts and usage of Vue3. We will start from scratch and guide you step by step to build a complete Vue application. Through practical cases and exercises, you will learn how to use Vue3's template syntax, component development, state management, routing and other functions. We will also introduce some advanced features, such as Composition API and Teleport, to help you better understand and apply the new features of Vue3. In this column, we'll guide you through each project in concise and clear steps, with detailed explanations and sample code. At the same time, we will also share some common problems and solutions in Vue3 development to help you overcome difficulties and improve development efficiency. Whether you want to learn Vue3 in depth or need a comprehensive guide to building a front-end project, the Vue3 thorough tutorial column will become an indispensable resource for you. Click to subscribe to the Vue3 Transparent Tutorial [From Zero to One] column
TypeScript Getting Started Guide (Free) is a column designed to help you quickly get started and master TypeScript related technologies. Through concise and clear language and rich sample code, we will explain the basic concepts, syntax and features of TypeScript in depth. Whether you are a beginner or an experienced developer, you can find a learning path that suits you here. From core features such as type annotations, interfaces, and classes to modular development, tool configuration, and integration with common front-end frameworks, we will comprehensively cover all aspects. By reading this column, you will be able to improve the reliability and maintainability of JavaScript code, and provide better code quality and development efficiency for your projects. Let’s embark on this exciting and challenging TypeScript journey together! Click to subscribe to the TypeScript Getting Started Guide column
