🎃 Spookyberb 🎃 – 13-03 Nov 23

Will this piece of code crash the app if it doesnt find anything?

const { fullName } = clients.find((client) => client.clientId === customerId);

const { fullName } = clients.find((client) => client.clientId === customerId);

7 Replies

Unknown User•2y ago

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@⛄Snowberb⛄ add a default value if .find() returns null:

const { fullName } = clients.find((client) => client.clientId === customerId) ?? { fullName: '' };

const { fullName } = clients.find((client) => client.clientId === customerId) ?? { fullName: '' };

Sniberb•2y ago

ooo I like this that's what I wanted but why ?? and not ||?

Unknown User•2y ago

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Alternatively you could use optional chaining without spread 🤔

const fullName = clients.find((client) => client.clientId === customerId)?.fullName;

const fullName = clients.find((client) => client.clientId === customerId)?.fullName;

!mdn optional chaining

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