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HomeBackend DevelopmentGolangHow to solve 'undefined: sort.Strings' error in golang?

In golang development, we often need to sort string types. Golang provides the sort package for sorting, but sometimes we encounter error messages such as "undefined: sort.Strings", which prevents us from compiling and implementing the code. This article explains how to resolve this issue.

First of all, we need to understand what the Strings function in the sort package is used for. The Strings function is used to sort string types. Its declaration is as follows:

func Strings(a []string)

This function will sort a slice type []string Sort. When we use the sort.Strings function, this function will be called to complete the sorting.

However, in some cases we may encounter "undefined: sort.Strings" errors. This is because some functions in the sort package are not exported, so we cannot use them.

The solution to this problem is very simple, just add the "_" prefix when importing the sort package, as shown below:

import (

"sort"
_ "sort"

)

This way we can use the sort.Strings function in our code. A simple example is given below:

package main

import (

"fmt"
"sort"
_ "sort"

)

func main() {

a := []string{"c", "a", "b"}
sort.Strings(a)
fmt.Println(a)

}

The output result is:

[a b c]

As you can see, the code compiles and runs smoothly, and our sorted results are output.

In short, if you encounter the "undefined: sort.Strings" error when using the sort package in golang, you only need to add the "_" prefix when importing the sort package to solve the problem.

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