How to implement webpage grabbing red envelopes in Javascript
This article describes the principles and ideas of Javascript writing through an example of a web page for grabbing red envelopes. Interested friends can refer to it for reference.
At first, I used Firefox to add the Firebug/YSlow plug-in for analysis, but Firefox could not run custom javascript, and it seemed that I needed to install some plug-ins. So I switched to chrome and found that chrome is pretty good. You can just write javascript and install it as a plug-in.
Taobao also changed the script several times, but of course it was the same every time. I admire the hard-working Taobao programmers who have to work overtime on weekends to revise scripts.
The appendix is a version of the script I wrote. Directly calling
Volcano.BrickRate=1.0; Volcano.Brick.getLottery(KISSY);
KISSY is something similar to JQuery. It took me a long time to figure it out.
After hanging up for 2 days, I only won 50 yuan in total. It is said that the big prizes are all leaked, you know. If Taobao only distributes rewards based on accounts, plug-in scripts are useless, haha.
Second version of script.
// tmall scripts in Chrome // // // ==UserScript== // @name tmall // @namespace google // @author vesor // @description Simple userscript to grasp tmall lottery // @include http://www.tmall.com Volcano.BrickRate=1.0; Volcano.Brick.getLottery(KISSY); //var L = S.DOM.get("#J_Lucky"); //L.click(); if(++tryCount) setTimeout(loopWrapper, 100); } loopWrapper(); console.log("tmall.user.js: Loaded"); } } catch(e) { console.log("Failed loading tmall.user.js"); }
The above is what I compiled for everyone. I hope it will be helpful to everyone in the future.
Related articles:
How to implement WebSocket function using NodeJS
How to obtain node elements using JS
About the use of vue-fontawesome in vue.js
The above is the detailed content of How to implement webpage grabbing red envelopes in Javascript. For more information, please follow other related articles on the PHP Chinese website!

Python and JavaScript have their own advantages and disadvantages in terms of community, libraries and resources. 1) The Python community is friendly and suitable for beginners, but the front-end development resources are not as rich as JavaScript. 2) Python is powerful in data science and machine learning libraries, while JavaScript is better in front-end development libraries and frameworks. 3) Both have rich learning resources, but Python is suitable for starting with official documents, while JavaScript is better with MDNWebDocs. The choice should be based on project needs and personal interests.

The shift from C/C to JavaScript requires adapting to dynamic typing, garbage collection and asynchronous programming. 1) C/C is a statically typed language that requires manual memory management, while JavaScript is dynamically typed and garbage collection is automatically processed. 2) C/C needs to be compiled into machine code, while JavaScript is an interpreted language. 3) JavaScript introduces concepts such as closures, prototype chains and Promise, which enhances flexibility and asynchronous programming capabilities.

Different JavaScript engines have different effects when parsing and executing JavaScript code, because the implementation principles and optimization strategies of each engine differ. 1. Lexical analysis: convert source code into lexical unit. 2. Grammar analysis: Generate an abstract syntax tree. 3. Optimization and compilation: Generate machine code through the JIT compiler. 4. Execute: Run the machine code. V8 engine optimizes through instant compilation and hidden class, SpiderMonkey uses a type inference system, resulting in different performance performance on the same code.

JavaScript's applications in the real world include server-side programming, mobile application development and Internet of Things control: 1. Server-side programming is realized through Node.js, suitable for high concurrent request processing. 2. Mobile application development is carried out through ReactNative and supports cross-platform deployment. 3. Used for IoT device control through Johnny-Five library, suitable for hardware interaction.

I built a functional multi-tenant SaaS application (an EdTech app) with your everyday tech tool and you can do the same. First, what’s a multi-tenant SaaS application? Multi-tenant SaaS applications let you serve multiple customers from a sing

This article demonstrates frontend integration with a backend secured by Permit, building a functional EdTech SaaS application using Next.js. The frontend fetches user permissions to control UI visibility and ensures API requests adhere to role-base

JavaScript is the core language of modern web development and is widely used for its diversity and flexibility. 1) Front-end development: build dynamic web pages and single-page applications through DOM operations and modern frameworks (such as React, Vue.js, Angular). 2) Server-side development: Node.js uses a non-blocking I/O model to handle high concurrency and real-time applications. 3) Mobile and desktop application development: cross-platform development is realized through ReactNative and Electron to improve development efficiency.

The latest trends in JavaScript include the rise of TypeScript, the popularity of modern frameworks and libraries, and the application of WebAssembly. Future prospects cover more powerful type systems, the development of server-side JavaScript, the expansion of artificial intelligence and machine learning, and the potential of IoT and edge computing.


Hot AI Tools

Undresser.AI Undress
AI-powered app for creating realistic nude photos

AI Clothes Remover
Online AI tool for removing clothes from photos.

Undress AI Tool
Undress images for free

Clothoff.io
AI clothes remover

AI Hentai Generator
Generate AI Hentai for free.

Hot Article

Hot Tools

SublimeText3 Chinese version
Chinese version, very easy to use

SublimeText3 Mac version
God-level code editing software (SublimeText3)

SecLists
SecLists is the ultimate security tester's companion. It is a collection of various types of lists that are frequently used during security assessments, all in one place. SecLists helps make security testing more efficient and productive by conveniently providing all the lists a security tester might need. List types include usernames, passwords, URLs, fuzzing payloads, sensitive data patterns, web shells, and more. The tester can simply pull this repository onto a new test machine and he will have access to every type of list he needs.

Dreamweaver Mac version
Visual web development tools

PhpStorm Mac version
The latest (2018.2.1) professional PHP integrated development tool