Play with design patterns – unify data structures from multiple sources
By the end of this article 📖 you will have: a clear understanding of multiple sources of data if the structure is uniform a better...
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Category: The back-end
Learn 50 lines of Python code that are fun and useful.
January 31, 2024
by 余佳蓉
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This is an interesting and useful line of Python code. Development tools Python version: 3.6.4 Related Modules: Environment Setup Install Python and add environment variables
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Hard algorithm (2d prefix and + 2D difference)
January 31, 2024
by 李美琪
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At the end of the hard question I met in leetcode week competition, I had no idea when I was doing it, because I had...
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Golang implements simple concurrent task consumption
January 31, 2024
by Raewyn Buchanan
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Another simple use of Golang func, and I have to say this grammar candy is really good. The essence of concurrent task consumption is a...
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Netty Channel source code analysis
January 31, 2024
by Brendon Higgins
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Earlier, we looked at some of the core components in Netty. Today we will introduce Netty's network communication component, which performs network I/O operation --...
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Good programmer web front-end tutorial learning ES6 property knowledge comb
January 31, 2024
by Kismat Kant
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ECMAScript 6.0(ES6 for short) is the next generation standard of JavaScript language. It was officially released in June 2015. The goal is to make JavaScript...
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Java does time processing
January 31, 2024
by Lance Stevenson
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Calendar (1), Calender introduction (2), simple use of dates (3), and the conversion between Date and Calender of course, Calender is the earliest time processing,...
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CCO X Hologres: The high availability architecture of real-time data warehouse has been upgraded again, and Double 11 has been implemented on a large scale
January 31, 2024
by Sumer Kuruvilla
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Introduction: This article will introduce how to upgrade the real-time data warehouse HA architecture based on last year and successfully launch double 11. Author |...
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Understand HTTPS status code (1) — 204 for love
January 31, 2024
by Badal Loyal
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Prologue had another nice weekend, the network protocol patriar, thinking that our huge family should also have a meeting from time to time, like the...
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[New function] Open search multi-way recall technology interpretation
January 31, 2024
by Tara Kale
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Introduction: Multi-path recall refers to the strategy of using different strategies, features or simple models to recall a part of candidate sets respectively, and then...
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Always say spring is difficult to learn? It’s nice to read these spring notes and explanations!
January 31, 2024
by Robert Cole
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Anyone who has used Spring knows that spring can do a lot of things with simple annotations, but how does this work and how does...
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Mysql: Chapter 15 _MySQL variables, Flow control, and cursors
January 31, 2024
by Frances Jones
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Variables in stored procedures and functions of the MySQL database, variables can be used to store intermediate result data of queries or calculations, or to...
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SpringBoot+Netty+Elasticsearch = SpringBoot+Netty+Elasticsearch
January 31, 2024
by Clive Elliott
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In a real development scenario, we would like to store a large amount of business and user behavior data for analysis, but because of the...
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Spring Boot Mysql version driver connection pool scheme selection
January 31, 2024
by 周詩涵
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Recommended. The latest version is Jul, the 5.1.48 version maintained in 2019. Do not use. With only a few releases, it's not safe and has...
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Leetcode 1463. Cherry Pickup II (Python)
January 31, 2024
by Claudia Chapman
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Leetcode 1463. Cherry Pickup II (Python) uses dynamic programming to solve problems in three ways
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A noise sensor acquisition and monitoring system is developed by using YoMo
January 31, 2024
by 陳鈺婷
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This example describes the application of YoMo in industrial Internet data collection. Taking the collection of noise sensor data as an example, it involves the...
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Upgrade your code — Lambda!
January 31, 2024
by Todd Wright
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Upgrade your code -- Lambda! I am not very familiar with it and study hard
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Python crawls Chinese New Year greetings and generates heart-shaped word clouds
January 31, 2024
by Ryan Chaudhary
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Foreword PK creative Spring Festival, I am participating in the "Spring Festival creative contribution contest", details please see: Spring Festival creative contribution contest ", yesterday...
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Distributed lock based on Redis
January 31, 2024
by 路宇軒
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Distributed lock is widely used in distributed applications. If you want to understand a new thing, you must first understand its origin, so that you...
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Time processing in Java8
January 31, 2024
by Stephanie Parks
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Java 8 further enhances Date and Time handling with the release of a new date-time API (JSR 310). In older versions of Java, the date-time...
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TCP three handshakes and four breakups
January 31, 2024
by Tamara Miller
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Understanding and mastering the three handshakes and four breakups of TCP is a basic skill for every programmer, so let's start with the TCP header....
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[NestJS] Configuration information and environment variables
January 31, 2024
by Dr. Guy Harrison
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It is recommended to use the nestjs-config module in a NestJS project to get the configuration. Nestjs-config provides the config.get() function, which reads the configuration...
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Originally the Netty writeAndFlush. AddListener such use is asynchronous.
January 31, 2024
by 梁淑慧
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Originally the Netty writeAndFlush. AddListener such use is asynchronous.
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Python functional programming
January 31, 2024
by Cheryl Moore
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Although Python is not a functional programming language (it is an imperative programming language), it supports many valuable functional programming tools. Python provides three built-in...
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GitHub open source accelerator, quick to see!!
January 31, 2024
by Louise Evans
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GitHub FastGithub is a customized VERSION of the DNS service that can resolve the best IP addresses. It is designed to solve problems such as...
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The deep adventure of Java classes being preloaded
January 31, 2024
by 馬宗翰
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1. First of all, we have built a bytecode plug-in platform similar to Skywalking. Basic principles reference talk about Java Intrumentation and related applications. So...
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Netty programming practice: control NIO
January 31, 2024
by Anthony Thompson
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Netty is widely used, with hundreds of distributed middleware applications, open source projects and commercial projects. Kafka, ElasticSearch, Dubbo, etc. are all using Netty, and...
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Hive SQL Common skills
January 31, 2024
by Logan Thompson
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This section describes hive SQL writing methods in some common data analysis scenarios, including range analysis, data conversion by condition, data column conversion, calculation of...
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“Build RPC Wheel from scratch series” 02 demo wheel, is the donkey is the horse out for a walk
January 31, 2024
by Mehul Rama
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Why do I want to build a wheel? "Build RPC Wheel from scratch series" 02 demo wheel, is the donkey is the horse out for...
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Kubernetes resource management
January 31, 2024
by Dana Mullen
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We can specify resource configurations for pods through Requests and limits, but it would be a bit tedious to specify resource configurations for each Pod....
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