[ 原始碼： node-core-js ]
套件：node-core-js-bundle（3.26.1-3）
Modular version of core-js to load only required features
core-js is a modular standard library for JavaScript. Includes polyfills for ECMAScript up to 2021: promises, symbols, collections, iterators, typed arrays, many other features, ECMAScript proposals. With core-js-bundle, one can load only required features or use it without global namespace pollution.