Ссылки для презентации "Удаление мертвого кода в проекте: практическое руководство" HolyJS 2025

links - dead code elimination.md

Удаление мертвого кода в проекте: практическое руководство

Пакетные менеджеры

• Как возникают дубли и почему необходима дедупликация: https://www.npmjs.com/package/yarn-deduplicate#why-is-this-necessary
• NPM npm dedupe: https://docs.npmjs.com/cli/v11/commands/npm-dedupe
• Yarn 1 yarn-deduplicate: https://www.npmjs.com/package/yarn-deduplicate
• Yarn 4 yarn dedupe: https://yarnpkg.com/cli/dedupe
• Yarn dedupes inconsistently: yarnpkg/yarn#6070
• Bun overrides and resolutions: https://bun.sh/docs/install/overrides
• Webpack resolve.alias: https://webpack.js.org/configuration/resolve/#resolvealias

Сборка (бандлинг)

• Webpack Tree Shaking: https://webpack.js.org/guides/tree-shaking/
• Tobias Koppers "Rethinking Bundling Strategies": https://gitnation.com/contents/rethinking-bundling-strategies
• Webpack DefinePlugin: https://webpack.js.org/plugins/define-plugin/
• Песочницы для Terser:
  • https://try.terser.org/
  • https://xem.github.io/terser-online/

Статический анализ

• Правила ESLint: https://eslint.org/docs/latest/rules/
• eslint-plugin-import no-unused-modules: https://github.com/import-js/eslint-plugin-import/blob/main/docs/rules/no-unused-modules.md
• Knip:
  • GitHub repo: https://github.com/webpro-nl/knip
  • Website: https://knip.dev/
  • Сравнение с другими инструментами: https://knip.dev/explanations/comparison-and-migration
• TSR (ts-remove-unused): https://github.com/line/tsr
• Depcheck: https://github.com/depcheck/depcheck#readme
• ts-prune: https://github.com/nadeesha/ts-prune

Рантайм

• DevTools Lighthouse Treemap: https://umaar.com/dev-tips/247-lighthouse-treemap/
• How to Collect Native V8 Coverage Data: https://gist.github.com/cenfun/0754c23f03d1aa541b4467920ab4d09f#how-to-collect-native-v8-coverage-data
• C8: native V8 code-coverage: https://github.com/bcoe/c8/
• NODE_V8_COVERAGE: https://nodejs.org/docs/latest/api/cli.html#node_v8_coveragedir
• v8.takeCoverage: https://nodejs.org/docs/latest/api/v8.html#v8takecoverage
• Пример v8.takeCoverage: https://github.com/cenfun/monocart-coverage-reports/blob/main/test/test-node-api.js
• Кэш в CommonJS module loader: https://nodejs.org/docs/latest/api/modules.html#requirecache
• Кэш в ES module loader: https://nodejs.org/docs/latest/api/esm.html#no-requirecache
• Кэш loadCache в ES module loader: https://github.com/nodejs/node/blob/a4f556fc368f42e830e914a635cc0604b1188eed/lib/internal/modules/esm/loader.js#L160
• Поиск копипасты:
  • Code Similarity: https://github.com/fengzilong/code-similarity
  • jscpd (JavaScript Copy/Paste Detector): https://github.com/kucherenko/jscpd
  • string-similarity (deprecated): https://github.com/aceakash/string-similarity
  • simhash: https://github.com/admazely/simhash

Автоматизация

• Запуск WebStorm code inspections из командной строки: https://www.jetbrains.com/help/webstorm/command-line-code-inspector.html#inspection-profiles

CSS

• CSSO (CSS Optimizer): https://github.com/css/csso
• Detect unused CSS selectors: https://gist.github.com/victor-homyakov/aefd2ed05a050b1068c667d829a17419