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WebSocket WebSocket is a protocol for full duplex communication on a single TCP connection provided by HTML5. WebSocket makes the data exchange between the client and the server easier, and allows the server to actively push data to the client. In the WebSocket API, the browser and server only need to complete a handshake, and they can direct ...

What do we need to do after we complete the input or content processing of various work data in the front-end report? Data export! The common export formats of these data include PDF, Excel, HTML and pictures. However, there are always some practical application scenarios, which need not only to export the existing content, but also to trans ...

🤫 Whisper reminder 🤫Pay attention to Zilliz WeChat official account and reply to "clean code"Get the super detailed mind map of code neatnessWhy should we pursue clean code?Clean Code puts forward that the quality of code is directly proportional to its cleanliness.Just let the code run is not enough, because the demand is growing, ...

1. Usage and comparison of call, apply and bind 1.1 Function.prototype All three are methods on the Function prototype, and all functions can call them Function.prototype.call Function.prototype.apply Function.prototype.bind 1.2 syntax fn stands for a function fn.call(thisArg, arg1, arg2, ...) // Receive parameter list fn.apply(thisArg, argsAr ...

catalogue resmbms Technical highlights Preparation for project construction Implementation of login function Login function optimization Implementation of login and logout function Login interception optimization Password modification Optimize password modification using AJAX User management implementation 1. Get the number of users ...

🍅 Java learning roadmap:   Thinking map of Java learning route 🍅 Java learning route summary: Brick movers counter attack Java Architects 🍅 Classic Java interview questions: Summary of 208 classic Java interview questions with 100000 words (with answers) 🍅 Introduction: high quality creator in Java field 🏆, CSDN the author o ...

📢 Hello, I'm Xiaocheng, a sophomore front-end enthusiast 📢 This series of articles is a learning summary of the practical jira task management system 📢 Thank you very much for reading. You are welcome to correct the wrong places 🙏 📢 May you be loyal to yourself and love life In the last article, we wrote the task group pa ...

JavaScript data type advanced Number type Common number types Decimal: 121 Binary: 01011 Octal: 0o377 Hex: 0xff Scientific counting method: 1.23e6 NaN Convert to string:. toString(base) Rounding Math.floorMath.ceilMath.roundMath.trunc: remove the content after the decimal point, which is not supported by IE browser 0.1+0.2 Sim ...

TypeScript is a superset of JavaScript and supports ECMAScript 6 standard( ES6 tutorial ). TypeScript is a free and open source programming language developed by Microsoft. TypeScript is designed to develop large-scale applications. It can be compiled into pure JavaScript, and the compiled JavaScript can run on any browser. TypeScript is a la ...

As shown in the figure, when we develop a Web system, we often encounter the need to use maps for display. Under ordinary needs, we can use ecarts maps. If we use ecarts to develop maps, we need to find map data, call ecarts map API, configure styles, render data, etc. a map effect takes a lot of energy and time. Here we introduce that this fun ...