is not assignable to type 'string'. Type 'void' is not assignable to type 'string'

Question

i'm learning ts, seriously, what's wrong with promises? :D

following function gives me this error

Type 'string | void' is not assignable to type 'string'. Type 'void' is not assignable to type 'string'.

export async function getType(serviceID: string, vendor: string, {inventory = defaultKeyinventory } = {}): Promise<string | null>{

    const item= inventory !.getItem(serviceID, vendor)
        .catch(() => console.log('error'));

    return item;
}

Joshua Robles · Accepted Answer · 2019-03-31 00:07:10Z

3

.catch returns a promise but you'll need to return something in your catch block. You'll need to return string or null.

export async function getType(
    serviceID: string, 
    vendor: string, 
    { inventory = defaultKeyinventory } = {}
): Promise<string | null>{

    const item= inventory !.getItem(serviceID, vendor)
        .catch(() => return null);

    return item;
}

answered Mar 31, 2019 at 0:07

Joshua Robles

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