跳过为const赋值

Question

I'm using flux and I found below code is not elegant. Can't I skip the const here? Is there any way to make it one line?

static getPropsFromStores(props) {
    const { items } = CrudStore.getState();
    return { items };
}

Answer 1

The existing line:

const { items } = CrudStore.getState();

...is a destructuring assignment equivalent to doing this:

const items = CrudStore.getState().items;

Whereas this line:

return { items };

...uses a shorthand object literal equivalent to this:

return { items: items };

That is, it creates and returns a new object with a property called items with a value set to whatever the existing items variable is.

So a one-line way of returning an object in the format {items: items} without creating the const would be:

static getPropsFromStores(props) {
    return { items: CrudStore.getState().items };
}

Answer 2

Write it like this:

static getPropsFromStores(props) {
    return {items: CrudStore.getState().items || null};
}