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Programmer DD
Programmer DD
Feb 17, 2023 · R&D Management

Why Maintaining core‑js Became My Biggest Mistake – Lessons for Full‑Time Open‑Source Developers

The article recounts core‑js author Denis Pushkarev’s struggle with sustaining a widely used polyfill library, his financial hardships, legal troubles, and proposes practical ways for full‑time open‑source contributors to achieve financial stability through sponsorship, remote work, and sustainable licensing models.

Open Sourcecore-jsfull-time development
0 likes · 11 min read
Why Maintaining core‑js Became My Biggest Mistake – Lessons for Full‑Time Open‑Source Developers
Alibaba Terminal Technology
Alibaba Terminal Technology
Apr 9, 2021 · Frontend Development

Master Babel 7: Resolve Common Runtime Errors and Optimize Polyfills

This article explains why Babel 6 and Babel 7 produce typical errors such as "regeneratorRuntime is not defined" and "Cannot find module 'core-js/library/fn/**'", then walks through the roles of @babel/preset‑env, @babel/plugin‑transform‑runtime, core‑js versions, useBuiltIns options, and provides concrete configuration examples for both application and library projects.

FrontendPolyfillRuntime
0 likes · 14 min read
Master Babel 7: Resolve Common Runtime Errors and Optimize Polyfills
ByteFE
ByteFE
Mar 30, 2021 · Frontend Development

Understanding Babel: Core Functions, AST, Polyfills, and Presets

This article explains Babel's role as a fundamental JavaScript compiler, detailing its parsing‑transform‑printing pipeline, AST structure, core‑js polyfills, preset‑env configuration, and runtime helpers, providing frontend developers with a comprehensive guide to mastering Babel's ecosystem and optimizing bundle size.

ASTFrontend DevelopmentJavaScript
0 likes · 13 min read
Understanding Babel: Core Functions, AST, Polyfills, and Presets