{"library":"polyfills-db","title":"polyfills-db","description":"A database of browser polyfill features, version 3.0.0, released as needed. Provides structured metadata about which browsers support each feature and which modules/files implement it. Supports runtime JS polyfills, recast-based JS transpilation, and postcss-based CSS transpilation. Key differentiator: centralized polyfill data for multiple transpilation targets, manually maintained with community contributions. Release cadence: irregular, stable.","language":"javascript","status":"active","last_verified":"Sat Apr 25","install":{"commands":["npm install polyfills-db"],"cli":null},"imports":["import polyfillsDB from 'polyfills-db'","import { data } from 'polyfills-db'","import { features } from 'polyfills-db'","import { browsers } from 'polyfills-db'"],"auth":{"required":false,"env_vars":[]},"quickstart":{"code":"import polyfillsDB, { data, features, browsers } from 'polyfills-db';\n// Log all feature keys\nconsole.log(features);\n// Check browser support for a feature\nconst feature = 'es6-array-from';\nif (data[feature]) {\n  console.log(`Browsers supporting ${feature}:`, data[feature].browsers);\n}\n// List available browsers\nconsole.log('Browsers:', browsers);\n// The database is a plain object; iterate features\nfor (const feat of features) {\n  console.log(feat, data[feat].polyfills);\n}","lang":"typescript","description":"Shows basic usage: import database, list features, and check browser support.","tag":null,"tag_description":null,"last_tested":null,"results":[]},"compatibility":null}