Sort type tools by job
Classify common TypeScript constructs by whether they model shape, alternatives, boundaries, or reuse.
sort buckets score chips common-trap callout Sort each TypeScript construct into the job it usually performs in professional code. Model shape Model alternatives Prove a boundary Preserve reuse interface Invoice with required fields { id: string; totalCents: number } parameter type type Status = 'draft' | 'paid' | 'void' { kind: 'error'; message: string } | { kind: 'ok'; value: User } typeof id === 'string' before string methods isWebhookEvent(payload) after JSON parsing function first(items: T[]): T | undefined Map inside a reusable cache
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