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TypeScript cheat sheet
Types, generics and config settings that keep an automation framework safe.
Types
Object type
type User = { id: string; age?: number };Union / literal
type Env = 'dev' | 'qa' | 'prod';Generic function
function first<T>(xs: T[]): T | undefined { return xs[0]; }Utility types
Partial<User>, Pick<User,'id'>, Record<string, string>Config
Strict mode
Catches most null/undefined defects
"strict": truePath alias
"paths": { "@/*": ["./src/*"] }Go beyond the reference
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