More and more Internet giants have begun to use the Go language, such as Tencent, Meituan, Didi, Baidu Google、bilibili...
There is also the ByteDance that was originally used in Python, and it has even fully embraced Go. So many leading domestic and foreign companies are starting to use it, what are its advantages? We need to talk about some of its advantages.
PS: Of course, there are also members of Go To Byte who want to learn Go language and use it to complete the big project of the youth training camp~
Some advantages of Go
Speaking of advantages, in some aspects it is mostly due to its unique features that others do not have, or the optimization of other people's troublesome areas, which makes it superior compared to others. Let's take a look at some of the features of Go, but before we delve into its rigidity, let's first take a look at several other common languages:
This is not a comparison, it's not about who is good or bad, but about crossing the river with a little horse, it varies from person to person~
1 C/C++
C language was invented by the great gods Ken Thompson and Dennis Ritchie in 1971, and one of the leading developers of Go language was Ken Thompson, so it is similar to C language in many ways, such as struct, Printf,&value symbol
C/C++, as a beginner language, is directly compiled into machine code, resulting in higher capital punishment efficiency and no need for an capital punishment environment. The user's usage cost is lower, unlike many languages that require installation of the required environment.
Due to these reasons, their one-time encoding or compilation is only applicable to one platform. For different operating systems, sometimes it is necessary to modify the encoding and recompile, and sometimes it can be simply recompiled.
And it's also very unfriendly to developers 😒， Need to handle the issue of garbage collection (GC) on your own. When encoding, it is also necessary to consider when the memory on the heap will be free or deleted? Will the code cause memory leaks and insecurity?
2 Java
As a novice learning Go from Java, I feel that the development efficiency is lower than Java before it is officially developed (personal feeling, don't criticize if you don't like it)~ 😁
Java is directly compiled into bytecode (. class), which is an intermediate code between raw encoding and machine code. In this case, Java programs require a specific capital punishment environment (JVM), which may result in lower capital punishment efficiency and possibly virtualization losses. But there is also an advantage to this, which is that it can be compiled once and executed in multiple places (cross platform). And it also comes with a built-in GC.
3 JavaScript
Like Python, JS is an interpreted language that does not require compilation and can run after interpretation. So Js also requires a specific capital punishment environment (browser engine).
After putting its code into the browser, the browser needs to parse the code, so there will also be virtualization losses. Js only requires a browser to run, so it is also cross platform.
Let's talk about Go again
After reading the brief introductions of several common languages mentioned earlier. C/C++has high performance because it compiles directly to binary without virtualization loss, which Go thinks is pretty good; Java's automatic garbage collection mechanism is very good, and Go thinks it's also good; One encoding of Js can be applied to multiple platforms, and Go thinks it's great; Moreover, Go naturally possesses high concurrency capabilities that are unmatched by any other language. Let's summarize it briefly!
Comes with a built-in runtime environment and does not require handling GC issues
The running environment of Go programs is impressive. In fact, most languages have the concept of Runtime, such as Java, whose program running environment is JVM and requires separate installation. For Java programs, without special processing, they can only run on machines with JMV environment.
And Go programs come with their own runtime environment. The runtime of Go programs is packaged as a binary product as part of the program and runs together with the user program. In other words, the runtime is also a series of. go code and assembly code. Users can "directly" call the functions of the runtime (such as make ([] int, 2, 6). This syntax is actually to call the makeslice function in the runtime). For Go programs, in simple terms, they can run without the need to install an additional runtime environment. Unless you need to develop a Go program.
Because of this, Go programs do not need to deal with GC issues and are fully handled by the Runtime (which needs to be packaged together anyway).
Quick compilation and cross platform compatibility
Unlike C/C++, for multiple platforms, it may be necessary to modify the code before compiling. It is also different from Java's one-time encoding, which compiles into intermediate code and runs on virtual machines on multiple platforms. Go can be easily compiled into machine code and run on multiple platforms with just one encoding.
It is worth mentioning that its cross platform capability is also endowed by Runtime, as Runtime has the ability to shield system calls to a certain extent.
Natural support for high-performance and high concurrency, with simple syntax and smooth learning curve
The ability of C++to handle concurrency is also not weak, but due to the high coding requirements of C++, many failures may occur if not experienced and professional C++programmers. Go may not have as much experience, but it can still write high-performance high concurrency programs.
It is worth mentioning that its super high concurrency is also endowed by the Runtime with the ability to handle coroutine scheduling.
Rich standard library, complete toolchain
For developers, after installing the Golang environment, they can use the official standard library to develop many features
And Go itself has a rich toolchain, such as code formatting, unit testing, benchmarking, package management, etc
......
Many big companies have started using Go language, why our team uses GoLang, and these features are somewhat related, right~