Type Inference with Short Variable Declaration

Snippet

Type Inference with Short Variable Declaration

Go supports type inference using the := operator. The compiler automatically determines the variable's type based on the assigned value. This makes code cleaner while maintaining static typing - Go is still a statically typed language, the compiler just figures out the type for you. You can declare multiple variables in a single statement.

snippet.go
go
package main
 
import "fmt"
 
func main() {
    name := "Alice"      // string inferred
    age := 28            // int inferred
    price := 19.99       // float64 inferred
    isStudent := true    // bool inferred
 
    fmt.Printf("Name: %s, Age: %d\n", name, age)
    fmt.Printf("Price: %.2f, Student: %v\n", price, isStudent)
 
    a, b := 100, "hello" // multiple variables
    fmt.Println(a, b)
}

Breakdown

name := "Alice"

The compiler infers this is a string type

age := 28

The compiler infers this is an int type

price := 19.99

Decimal literals default to float64 type

a, b := 100, "hello"

Multiple variables with different types in one statement

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Type Inference with Short Variable Declaration

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