Function resolveWithFallback

Resolves a value as per resolve, however f an error is thrown or the resolution results in undefined or NaN, the fallback value is returned instead.

null is an allowed return value.

// Function returns undefined 50% of the time or 0
const fn = () => {
 if (Math.random() >= 0.5) return; // undefined
 return 0;
}
const r = resolveWithFallback(fn, 1);
const value = r(); // Always 0 or 1
Copy

See also resolveWithFallbackSync