Code Typing · TypeScript
Result Type
Discriminated union for explicit error handling.
Difficulty: Intermediate · 11 Lines · License: public-domain
type Result<T, E = Error> =
| { ok: true; value: T }
| { ok: false; error: E };
function parseJson<T>(raw: string): Result<T> {
try {
return { ok: true, value: JSON.parse(raw) as T };
} catch (err) {
return { ok: false, error: err as Error };
Time0:00
Speed (WPM)0.0
Accuracy100.0%
Mistakes0
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