After giving the input why it shows error?

Question

I know the right answer of js problem contact manager is :-

function contact(name, number) {
this.name = name;
this.number = number;
this.print=function()
{
console.log( this.name +":",this.number);
}

}
var a = new contact("David", 12345);
var b = new contact("Amy", 987654321);
a.print();
b.print();

But,
If i write :-

Function contact(name,number){
this.name = name;
this.number = number;
this.print = go;
}
Function go(){
return this.name + ":" + '\xa0' + this.number;
}

var a = new contact("David", 12345);
var b = new contact("Amy", 987654321);

Console.log(a.print());
Console.log(b.print());

This also gave the same result
David : 12345
Amy : 987654321

But it shows wrong.plz tell why it shows wrong

Answer 1

When Sololearn asks for output, they are usually asking for you to `console.log` something. Simply returning will not actually print the value, thus Sololearn reads this as no output. In the test cases, Sololearn will be undoubtedly creating different instances of `contact` and giving them different `name`s and `number`s and then running the `print` method of that instance to ensure you cannot simply print the correct string and have actually solved the challenge.