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Editor's pickFind Node.js memory leaks caused by event listeners and timers. Learn cleanup patterns and verify fixes with process metrics and heap snapshots.
Learn to configure Node.js API rate limiting with express-rate-limit, return 429 responses, set headers, trust proxies safely, and scale across instances.
Learn how npm ci and npm install handle lockfiles, dependency changes, and mismatches, then choose the right command for local development and CI.
Fix npm ERESOLVE conflicts by tracing peer dependencies, checking version ranges, preserving lockfiles, and choosing safer alternatives to --force.
Learn to publish a TypeScript library to npm with clear ESM or CommonJS support, correct exports and declarations, and clean consumer-project tests.
Build a typed Node.js CLI with Commander.js: define arguments and options, validate input, generate help, handle errors, and compile with TypeScript.