在Node.js中返回对象文字时出错

Question

I have the following code in my application as i am following lynda.com tutorial to learn Node.js I get some error on line where it says origin: o saying "unexpected token"

var number, origin, destination;

exports.setNumber = function(num){
    number = num;
}

exports.setOrigin = function(o){
    origin = o;
}

exports.setDestination = function(d){
    destination = d;
}

exports.getInfo = function(){
    return 
    {
        number: number,
        origin: origin,
        destination: destination
    };
};

I have no idea what is the error, i am following the tutorial line by line on lynda.com

Answer 1

return 
{ ... }

is equivalent to

return;
{ ... }

because of JavaScript's automatic semicolon insertion . If you want to spread the return value over multiple lines, you have to start the object literal on the same line:

return {
  // ...
};

---

You got the error because

{
    number: number,
    origin: origin,
    destination: destination
};

is interpreted as a block , number: as a label and t he , as a sequence expression , which is basically equivalent to

(number, origin: origin, destination: destination)

origin: is simply invalid at this position.