Programmer Think

In the daily development process, we will inevitably encounter the comparison and operation of various types of variables. Here we have made some simple summaries, hoping to help students in the development. Here we start with the last wave of relational operators==,!=,<,<=,> and>=. float floating point comparison Goang supports two ...

Introduction: Google language is the most popular programming language in recent years. It is a static, compiled, concurrent programming language developed by Google with garbage collection function. GoLanguage has two characteristics: high development efficiency and high execution efficiency. It is known as C language in the era of cloud compu ...

My understanding of casbin This paper takes the iris framework as an example, and the native or other framework is basically the same. according to Official Documents First of all, introduce several important parts.(Installation method skip) There are two places to configure using casbin, one is the model and the other is the policy RBAC (Role- ...

Preface This article will introduce our form solution. @femessage/el-form-renderer Show us how we deal with the following issues under the Vue technology stack: Dynamic display or hiding of form items Form Data Linkage Format Input/Output Data Formatting Processing of Unconventional Form Items Complex form validation programme Dynamic Display ...

Summary In the Go Micro framework, Server is an encapsulation of services such as Broker, Register, Codec, Transort, as you can see in the figure below.Look again at the interface defined by Server Init: Initialization Handler: Register rpchandler NewHandler: Encapsulated rpchandler NewSubscriber: Encapsulating Subscriber to Subscribe Method S ...

In the same goroutine: What is the call stack principle for multiple defer s?How is the defer function called? To explore the mystery, I've prepared the following code: package main import "fmt" func main() { xx() } func xx() { defer aaa(100, "hello aaa") defer bbb("hello bbb") return } func aaa(x int, arg string) { fmt.Pr ...

Implementation of a protocol pool in fasthttp The protocol pool can control parallelism and reuse the protocol.An important reason why fasthttp is many times more efficient than net/http is the use of a coprocess pool.The implementation is not complicated, we can refer to his design to write high-performance applications. Entrance // server.go ...

Golang Learning: Object-Oriented Method Definition of Method Struct is more flexible than function. It encapsulates properties and operations. The former is the field in the structure type, while the latter is the method owned by the structure type. The parenthesis between the key word func and the name Grow and its contents are the recipie ...

Interface interface defines the behavior specification of an object, only defines the specification but not implements it. Specific objects are used to implement the details of the specification. Interface type In Go language, interface is a kind of type and an abstract type.Interface is a set of methods, which is an embodiment of duck-type pr ...

Add Golang Learning QQ Group to Learn Progress, Start a Family and Start a Business Job ^-^ Group Number: 96933959 Arrays Arrays are fixed-length sequences of the same data type. The array is a value type, so changing the value of the copy does not change its own value. When an incoming reference is introduced as a method, an array is copie ...