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Go Error's design philosophy is "Errors Are Values". How should this sentence be understood? It's difficult to translate. However, from the perspective of source code, it seems easier to understand the meaning behind it. The source code of Go Error is very simple, just a few lines: // src/builtin/builtin.go type error interface { ...

Error is the most basic and important part of Go language development. It is basically the same as the role of try catch in other languages. Think about the fact that in PHP JAVA development, try catch can't be used or used flexibly, so you can't perceive what errors occur in program operation. It's a particularly terrible thing. Error basis ...

[TOC] Share a wave of GO Crawlers Let's review the last time we talked about using Google to send email Golang+chromedp+goquery simple crawling dynamic data Go theme month Shared email. What is emailWhat are the mail protocolsHow to send e-mail using GolfHow to send e-mail with plain text, HTML content, attachments, etcHow to send e-mail, ho ...

Source location of this section https://github.com/golang-minibear2333/golang/blob/master/4.concurrent/4.4-deadlock/ When will deadlock occur In the principle of computer composition, it is said that there are three necessary conditions for Deadlock: Circular waiting, resource sharing and non preemptive. There are only two cases of channel ...

Author: Wang DongyangprefaceSorting and binary search are very common algorithms in computer science leveldb memdb source code analysis (Part 2): Rust implementation You can see that many methods use binary search. This paper will compare some characteristics and differences in sorting and search methods between Go and Rust. For Go, we mainly u ...

Importance of single test Convenient debuggingFacilitate code refactoringImprove code qualityMake the whole process agile Go single test Basics Basic rules Usually our unit test code is placed in_ test. In the file ending with go, the file is generally placed in the same package as the object code.The Test method starts with Test and ha ...

background The user needs to perform ocr identification. In order to prevent the interface from being brushed, there is a limit (the number of calls per minute cannot exceed xxx). After investigation, we decided to use the incr and expire of redis to implement this function Note: the following code is implemented using golang First edi ...

Operator SDK: read relevant documents and explain some commands in combination with the official sample built based on GO Read and translate some contents in the official document of operator SDK, and use go language to combine the contents in the official document Building Operators Sample of Quickstart for Go-based Operators : a set of simpl ...

Basic use Gin is a high-performance golang web framework. Its code is actually very few. Compared with spring, understanding gin is really chopping melons and vegetables Let's take a look at the basic usage of gin import "github.com/gin-gonic/gin" func Init() { r := gin.Default() initRoute(r) r.Run() } func initRoute(r *gin.Engine) { r ...

😶 ‍ 🌫️ go official Programming Guide: https://pkg.go.dev/std Go language official documents, learning notes are very complete, it is recommended to go to the official website to learn 😶 ‍ 🌫️ My study notes: github: https://github.com/3293172751/golang-rearn Blockchain Technology (also known as distributed ledger Technolo ...