What advanced developers can learn from beginners

In the past few years, I have the luxury of working and mentoring with a considerable number of beginners. Although I have clearly witnessed a considerable part of my programming failure, things are not as black and white as they seem. Among beginners, I always see some patterns and behaviors. While some of these behaviors are misleading and ha ...

Added by LTJason on Fri, 11 Feb 2022 12:04:46 +0200

Spring Certification Guide: learn how to use spring to perform form validation

Original title: Spring certified China Education Management Center - learn how to use spring to perform form verification (spring China Education Management Center)This guide will guide you through the process of configuring Web application forms to support validation.What will you buildYou will build a simple Spring MVC application that accept ...

Added by johno on Fri, 11 Feb 2022 12:01:59 +0200

Learning of spring framework

spring framework summary: Spring is a lightweight open source framework for layered Java SE/EE application full stack with IoC (Inverse Of Control: Inversion control) and AOP (Aspect Oriented Programming) provide a presentation layer Spring for the kernel MVC, Spring JDBC in the persistence layer, transaction management in the business layer ...

Added by digibrain on Fri, 11 Feb 2022 12:00:41 +0200

Meisai 8: simulated annealing algorithm, genetic algorithm, particle swarm optimization algorithm (intelligent algorithm)

catalogue First, Simulated annealing algorithm (SA). 1. Basic theory of SA 2.SA solves the maximum value of the function 3.SA toolbox 2, Genetic algorithm (GA) 1. Theoretical basis of GA 2.GA solves the maximum value of function 3.GA toolbox 3, Particle swarm optimization (PSO) 1. Knowledge of PSO algorithm 2.PSO algorithm design 3. ...

Added by justphpdev on Fri, 11 Feb 2022 11:54:03 +0200

Fluent | image source code analysis and optimization method

prefaceImage is a small component used by fluent to display images. It can load images in network, local, file or memory, and supports JPEG, PNG, GIF, animated GIF, WebP, animated WebP, BMP and WBMP formats. Fluent image itself also implements the mechanism of memory cache, which can greatly improve the speed of image display.Review how Image i ...

Added by Twentyoneth on Fri, 11 Feb 2022 11:52:44 +0200

Honorable Course in Data Structure - First Experimentation Solution Report

1. Repeat Count subject In a limited sequence of positive integers, some numbers repeat several times. Please count the number of occurrences of each number, and then output the number and its number in the order where the number first appears in the sequence. Output format: A number of rows, two separated by a space in each row. The firs ...

Added by thepriest on Fri, 11 Feb 2022 11:48:53 +0200

A small and easy-to-use Python crawler Library

Today, I recommend a small and lightweight crawler Library: mechanical soup   MechanicalSoup is also a reptile artifact! It is developed in pure Python. The bottom layer is based on Beautiful Soup and Requests to realize web page automation and data crawling   Project address: https://github.com/MechanicalSoup/MechanicalSoup   2. Install ...

Added by kshyju on Fri, 11 Feb 2022 11:47:28 +0200

netty series: true equality – Rendezvous in UDT

brief introductionIn all the knowledge of netty we mentioned before, netty seems to be divided into client-side and server-side. The server listens to the connection and processes the messages in the connection. The client establishes a request connection to the server, so that it can send messages.However, all this should be terminated in UDT ...

Added by notsleepy on Fri, 11 Feb 2022 11:43:09 +0200

[TypeScript 4.5] 004 - Chapter 4 type reduction

[TypeScript 4.5] 004 - Chapter 4 type reduction 1, typeof type guard 1. What is type reduction meaning TypeScript type reduction is the process of converting from wide type to narrow type Type reduction is often used in scenarios that deal with union type variables code analysis function padLeft(padding: number | string, input: strin ...

Added by phpvolution on Fri, 11 Feb 2022 11:41:18 +0200

Introduction to difficult points of Jest unit test

Article toneIntroduce the concept and thinking process, and do not provide code (refer to the specific code writing method) jest official website)Extension:In the era of information explosion, all kinds of resources are very rich. There are many materials on the InternetHowever, the details of the official website do not duplicate the same info ...

Added by jonoc33 on Fri, 11 Feb 2022 11:37:27 +0200