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orElseAsync()

orElseAsync<T>(fn, fallback): Promise<T>

Executes an async function and returns its result, or a fallback value if an error occurs.

Type Parameters​

T: T​

The return type.

Parameters​

fn: () => Promise<T>​

The async function to execute.

fallback: T​

The value to return if the function throws an error.

Returns: Promise<T>​

A Promise that resolves to the result of the function or the fallback value.

Since​

2.0.0

Example​

const result = await orElseAsync(async () => {
  const response = await fetch('/api/data');
  return await response.json();
}, {});
console.log(result); // {} if fetch fails

const data = await orElseAsync(async () => {
  const user = await getUserFromDB(id);
  return user.profile;
}, null);
console.log(data); // null if user not found or DB error