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How to solve the problem of golang without close

PHPz

Apr 03, 2023 am 09:19 AM

Golang is an emerging programming language that has received more and more attention and love from programmers in recent years. Compared to other programming languages, Golang has higher concurrency, better performance, and simpler syntax. However, we know that every programming language has its own characteristics and flaws, and Golang is no exception. One of the relatively unique features is that it does not have a close method similar to the stream in Java.

So, why doesn’t Golang have a close method? This issue has been discussed in major technical forums, let us discuss it.

First of all, we need to understand the role of the close method. In Java, stream is a stream used to read or write data, and the close method is used to close the stream. The advantage of closing the stream is that it can release resources and prevent the program from crashing due to excessive resource usage. Additionally, closing a stream prevents data from being unread or unwritten in the stream.

However, in Golang, we found that there is no existence similar to the close method. If resources need to be released, we need to manually call the defer keyword. So, why doesn't Golang use the close method to release resources?

In fact, the reason why Golang does not have a close method is because it has a better solution: garbage collection mechanism. In Golang, the garbage collection mechanism is automatic, while in Java, manual garbage collection is required. This means that Golang will automatically recycle resources that are no longer used, avoiding program freezes or crashes.

In addition, Golang has some other advantages. For example, it is very suitable for dealing with concurrency issues. In Golang, we can use goroutine to achieve concurrency. Goroutines are similar to threads, but are more lightweight than threads because they do not require the operating system to reallocate memory, so the cost of creating and destroying goroutines is less. This is one of the reasons why there is no close method in Golang.

Although there is no close method in Golang, its internal processing method makes programmers do not need to use this method. On the contrary, its garbage collection mechanism and lightweight goroutine greatly reduce the amount of code and development difficulty for programmers. For programmers, the programming experience in Golang is very good.

In short, Golang does not have a close choice in its language design. This is not only because of the garbage collection mechanism and the use of lightweight goroutines, but also for many other reasons. Whatever the reason, Golang has proven to be a very good programming language in terms of its flexible syntax and powerful concurrency performance.

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