Multiple returns inside JavaScript export function

Question

I am exporting a function which returns a function. Where I want to have another return statement with the previously returned function as shown.

export function fetchData(id) {

    return function(dispatch) {

        REST.jsonRestGet(`data/sos/${id}`, Data.prepareSosData(
                (data) => {
                 console.log(data);
                return data; // returns undefined
                }))
    }
}

While importing and calling this function into another component, it returns undefined.

score 0 · Answer 1 · answered Nov 05 '19 at 10:04

0

It seems to be an asynchronous call. As the statement is executed asynchronously, it won't be returning anything. Also, the return statement inside the callback will return the value to the second argument only and not the variable you are expecting to.

You can use promises to get the returned data.

answered Nov 05 '19 at 10:04

Nikhil Goyal

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can you demonstrate here with an example.? – Meana Nov 05 '19 at 10:30
Can you share REST.jsonRestGet and Data.prepareSosData? – Nikhil Goyal Nov 05 '19 at 10:33

Multiple returns inside JavaScript export function

1 Answers1