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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.

Sustainabilitycore-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.

PolyfillRuntimebabel
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.

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