In golang which, if there is no assignment at initialization, it will use zero value. However, over time, we will find that if zero value is replaced each time, we would not know whether the user did not enter a value that resulted in zero value, or did the user originally enter a zero value? At this time because of Email, Name...
This article is a summary of How to collect, standardize, and centralize Golang logs | Datadog. There are usually a few points to note when using log: the log is passed as a parameter, you need to use the log to pass parameters into the unified context...
In golang, for the type of interface {}, you can make type determination to assume that the interface is a type, so that you can manipulate the methods in that type. This code can make the original interface...
Recently, projects have been moving from Ruby On Rails to golang, except for one thing you want to practice writing to see how ugly syntax feels, on the one hand, to feel the power of golang and how to organize your own code without an existing framework. Today is the goworker. He will look at the reason is to search for go worker...
I looked at the popular sql packages now and found that almost none of the functions can be used to jump an error when connection is lost in real time. For example: nodejs mysql which, we can use connection.on ('error') to listen for errors. But in golang...
We often need to switch between different environments when developing a project, so we often set different environment variables. However, if you write directly to the program every time it is too cumbersome, if you can pass in the environment variables dynamically, you can reduce a lot of unnecessary changes, and the program is relatively clean. Flag can generally be used in golang flag this package...
In golang there are two reserved words make and new, but also the beginning of learning golang easy to confuse place, here to make a simple note. new new can be used to initialize the generic and return the storage address. So we usually use pointer variables to pick up new types. In particular, it should be noted that new will automatically use zeroed value...