babel-runtime

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library 6.26.0 ·javascript deprecated
verified Apr 25, 2026

babel-runtime is a self-contained runtime helper library for Babel-transpiled code, version 6.26.0. It provides polyfills and helpers (e.g., `classCallCheck`, `extends`, `typeof`) for ES6+ features without polluting the global scope. Unlike `@babel/runtime` (v7+), this is the legacy v6 package. It is stable but no longer actively developed; users should migrate to `@babel/runtime` v7+ for new projects. Key differentiator: bundling helpers at build time via `babel-plugin-transform-runtime` to avoid code duplication.

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