Getting rid of invalid character from/in VSCODE-CodePudding

I am a totally new Golang developer, But I am facing some problem while using VSCODE. It's it's happening from time to time. It's giving me a lot of headache sometimes to debug my code. I am not sure how to fix this issue. I am adding two images for reference ,

The first Image, There is an invalid character

Then, I have opened the same file with another editor, And here is what I got

Same Code with another Editor

The problem is, This is happening automatically. I am not sure where the problem is. If you have a solution about how to avoid this without changing my editor , Please let me know.

Thank you in advance.

CodePudding user response：

(Firstly, please include the source code in your questions - I know you wanted to show the syntax highlighting - but it helps to reproduce the problem)

Your original code has many issues stemming from mismatched types etc.

Fixing some of these, enables the code to compile/run:

func main() {
    k := 3   // int
    b := 2.5 // float64
    var g float32
    g = float32(k) * float32(b) // need type conversion to get desired float32
    fmt.Println(g)              // reference g - to avoid "g declared but not used" go vet error
}

https://go.dev/play/p/XQCEMya-BlN

CodePudding user response：

SOLVED This problem was solved by @colm-anseo This is most likely not related to hidden Unicode characters - but since Go source is UTF-8 compliant, "gremlin" characters can sneak in (typically when cut-n-pasting from the web). This extension For VSCODE can solve the problem and can detect those unwanted "gremlin" characters