How do you optimize TypeScript compilation for large projects?

TypeScript compilation optimization involves proper configuration, project structure, and build strategies. Project References: { "compilerOptions": { "composite": true, "declaration": true, "declarationMap": true }, "references": [ { "path": "./packages/core" }, { "path": "./packages/ui" }, { "path": "./packages/api" } ] } Incremental Compilation: { "compilerOptions": { "incremental": true, "tsBuildInfoFile": ".tsbuildinfo", "composite": true } } Performance Optimizations: { "compilerOptions": { "skipLibCheck": true, "skipDefaultLibCheck": true, "noEmitOnError": false, "isolatedModules": true, "importsNotUsedAsValues": "remove" }, "exclude": [ "node_modules", "dist", "**/*.test.ts", "**/*.spec.ts" ] } Build Optimization Strategies: // Use type-only imports import type { User } from "./types"; import { validateUser } from "./validators"; // Prefer interfaces over type aliases for better performance interface Config { apiUrl: string; timeout: number; } // Use const assertions for better tree shaking const API_ENDPOINTS = { users: "/api/users", posts: "/api/posts" } as const; Webpack/Build Tool Integration: // webpack.config.js module.exports = { resolve: { extensions: [".ts", ".tsx", ".js"] }, module: { rules: [ { test: /\.tsx?$/, use: { loader: "ts-loader", options: { transpileOnly: true, projectReferences: true } } } ] }, plugins: [ new ForkTsCheckerWebpackPlugin() ] }; Benefits: • Faster compilation times • Better memory usage • Improved developer experience • Scalable build architecture • Parallel compilation support.