TypeScript Strict Standard

Rules extracted from 10+ production TypeScript codebases. All projects use strict: true.

CRITICAL: Type Safety Rules

TS-01: Never use any

// BAD
function process(data: any) { return data.value; }
const handler = (e: any) => console.log(e);

// GOOD
function process(data: Record<string, unknown>) { return "value" in data ? data.value : undefined; }
const handler = (e: MouseEvent) => console.log(e.target);