Structural Equality in Golang

Structural Equality in Golang is easier to approach with a clear overview and reliable steps. This guide organizes the essential information, highlights practical details, and explains what to check along the way.

In Go language, you are allowed to compare two structures if they are of same type and contain same field values ??with the help of == operator or DeeplyEqual() method. Both operator and method return true if structures are identical, otherwise, return false. And if the variables being compared belong to different structures, then compiler throws an error.

Let's look at an example to better understand equality or structural comparison in Golang!

Note: The DeeplyEqual() method is defined in the "reflect" package.

Example 1:

// Ch??ng trình Go minh h?a // khái ni?m c?a so sánh bình ??ng c?u trúc // using == operator package main import "fmt" // T?o m?t c?u trúc type Author struct { name string branch string language string Particles int } // Hàm chính func main() { // T?o bi?n // c?a c?u trúc Author a1 := Author{ name: "Moana", branch: "CSE", language: "Python", Particles: 38, } a2 := Author{ name: "Moana", branch: "CSE", language: "Python", Particles: 38, } a3 := Author{ name: "Dona", branch: "CSE", language: "Python", Particles: 38, } // Ki?m tra xem a1 b?ng // a2 hay không // Dùng toán t? == if a1 == a2 { fmt.Println("Variable a1 is equal to variable a2") } else { fmt.Println("Variable a1 is not equal to variable a2") } // Ki?m tra xem a1 b?ng // a2 hay không // Dùng toán t? == if a2 == a3 { fmt.Println("Variable a2 is equal to variable a3") } else { fmt.Println("Variable a2 is not equal to variable a3") } } 

Result:

Variable a1 is equal to variable a2 Variable a2 is not equal to variable a3

Example 2:

// Ch??ng trình Go minh h?a // khái ni?m bình ??ng c?u trúc // dùng ph??ng th?c DeepEqual() package main import ( "fmt" "reflect" ) // T?o m?t c?u trúc type Author struct { name string branch string language string Particles int } // Hàm chính func main() { // T?o bi?n // c?a c?u trúc Author a1 := Author{ name: "Soana", branch: "CSE", language: "Perl", Particles: 48, } a2 := Author{ name: "Soana", branch: "CSE", language: "Perl", Particles: 48, } a3 := Author{ name: "Dia", branch: "CSE", language: "Perl", Particles: 48, } // So sánh a1 v?i a2 // Dùng ph??ng th?c DeepEqual() fmt.Println("Is a1 equal to a2: ", reflect.DeepEqual(a1, a2)) // So sánh a2 v?i a3 // Dùng ph??ng th?c DeepEqual() fmt.Println("Is a2 equal to a3: ", reflect.DeepEqual(a2, a3)) } 

Result:

Is a1 equal to a2: true Is a2 equal to a3: false

Final Thoughts

The most reliable way to handle structural equality in golang is to follow the process in order, verify each important setting, and test the result before moving on. Use the guidance above as a practical reference, then adjust the details for your device, software version, or specific goal.