CourseElementary7177

Course Introduction：AJAX stands for Asynchronous JavaScript And XML, which is asynchronous JS and XML. Through AJAX, you can send asynchronous requests to the server in the browser. The biggest advantage: obtaining data without refreshing. AJAX is not a new programming language, but a new way of using existing standards together.

CourseIntermediate4443

Course Introduction：There are two main purposes for studying this course: 1. Visual panel layout adapts to the screen 2. Use ECharts to realize histogram display Core Technology: -Based on flexible.js + rem smart large screen adaptation - VScode cssrem plug-in - Flex layout - Less to use - Based on ECharts data visualization display - ECharts histogram data settings - ECharts map introduction

CourseElementary20716

Course Introduction：Use PDO mode (PHP data object) to connect and select databases (unified operation of various databases), execute SQL statements and process result sets

CourseElementary1792

Course Introduction：Python visualization video series using matplotlib, seaborn, pyecharts, combined with real data sets; this video is reproduced from Bilibili: BV1gz411v7F5

CourseIntermediate8097

Course Introduction：Many programmers who have worked for many years still have a very basic understanding of databases. They are confused as soon as they go out for interviews. They don’t understand basic SQL statements, more complex SQL queries, and SQL statement optimization. They don’t even know how to use them. Redis improves system performance and can withstand tens of millions of concurrencies. This set of courses will help you thoroughly understand MySQL locks, execution plans, indexes, MVCC & Redis transactions, cache, breakdown, penetration, avalanche, warm-up, etc., and you can complete all database interviews in one set!

Course Introduction：Why use data vis When you need to work with a new data source, with a huge amount of data, it can be important to use data visualization to understand the data better. The data analysis process is most of the times done in 5 steps: Extract -

2024-09-07 comment 01013

Course Introduction：What Question Does IndexedDB Solve? IndexedDB is a solution to store large amounts of structured data, even offline. It solves the problem of efficient local storage for web applications, enabling them to access, update, and query large data

2024-09-06 comment 0713

Course Introduction：What Question Does IndexedDB Solve? IndexedDB is a solution to store large amounts of structured data, even offline. It solves the problem of efficient local storage for web applications, enabling them to access, update, and query large data

2024-09-06 comment 0830

Course Introduction：Data is regarded as the "new oil" that fuels innovation, decision-making, and development in various sectors. As organizations seek to gain the benefits of data, the need for data specialists has become very important. Data engineers are un

2024-08-26 comment 0622

Course Introduction：Conflict-free Replicated Data Types (CRDTs) are a class of data structures that enable seamless collaboration and data synchronization in distributed systems, allowing for collaborative updates without conflict. CRDTs are designed to achieve eventual

2024-08-30 comment 0493