Visual Studio Code 中没有输出

Question

I'm learning JavaScript and I wrote a simple program in Visual Studio Code but there was no output what so ever when I attempted to run it.

class main{
    multiplier(x,y){
        return x*y
    }
    main(){
        let x,y
        x = window.prompt('Your favourite number')
        y = window.prompt('Your age')
        console.log(multiplier(x,y))
    }
}

Answer 1

You did several issues

• didn't create an instance
• didn't run main()
• forgot a this

 class main{ multiplier(x,y){ return x*y } main(){ let [x, y] = [0, 0] x = prompt('Your favourite number') y = prompt('Your age') console.log(this.multiplier(x,y)) } } const obj = new main() obj.main()