Contains polyfills needed for features added in ECMAScript 2017
countdown
just another module for padding a string on its left
Efficiently applies the minimum of transforms to run stage 4 code on Node.js 6, 8 and 10
提供一些最新特性的polyfill
Actionable, developer-centric security insights for Node.js applications
ES2017 spec-compliant String.prototype.padLeft shim.