Error

Error Image

Error Text

no new variables on left side of :=

Source Code

Original

package main

import (
    "fmt"
)


func variableDeclaration(){

    /*
        Declare Variables
    */
    var strBuffer string
    
    strBuffer := "";
    
    fmt.Println(strBuffer);

}


func main(){
    variableDeclaration()
}

 

Revision

Outline

1. The original code read
   • strBuffer := “Sam”
2. The := means to declare a new variable and set its value
   • And, so strBuffer := “Sam” reads
     • Declare a new variable ( strBuffer )
     • Set the variable value to Sam
3. Please rewrite as
   • strBuffer = ‘Sam”

Code

package main

import (
    "fmt"
)


func variableDeclaration(){

    /*
        Declare Variables
    */
    var strBuffer string
    
    //No need for :
    //Simply replace := with =
    //strBuffer := "Sam";
    strBuffer = "Sam";
    
    fmt.Println(strBuffer);

}


func main(){
    variableDeclaration()
}

 

Source Code Control

Github

1. Repository
   • Repository – Folder – Golang/exercises/error/NoNewVariables
     Link
     • Files
       • NoNewVariables.go
         Link
       • NoNewVariablesRevised.go
         Link

Summary

Only Daniel can make a rookie mistake on a HelloWorld sample code.