Use rollup plugins in es-dev-server
Next-generation ES module bundler
Get an iterator for any JS language value. Works robustly across all environments, all versions.
Dev server for web applications
Use rollup plugins in @web/dev-server
Seamless integration between Rollup and Babel.
Mad metrics for your rollup bundles, know all the things
ECMAScript “ToPrimitive” algorithm. Provides ES5 and ES2015 versions.
ES2019 spec-compliant String.prototype.trimStart shim.
ES2019 spec-compliant String.prototype.trimEnd shim.
Helper package to shim a method into `Array.prototype[Symbol.unscopables]`
An ES2019 spec-compliant `Array.prototype.flatMap` shim/polyfill/replacement that works as far down as ES3.
ECMAScript spec abstract operations.
An ES2015 mostly-spec-compliant `Reflect.getPrototypeOf` sham/polyfill/replacement that works in as many engines as possible
ES6 spec-compliant RegExp.prototype.flags shim.
An ES2019 spec-compliant `Array.prototype.flat` shim/polyfill/replacement that works as far down as ES3.
ES5 spec-compliant shim for String.prototype.trim
A rollup plugin that will bundle up your .d.ts definition files.
An ESnext spec-compliant `Array.prototype.findLast` shim/polyfill/replacement that works as far down as ES3.
Native-ESM powered web dev build tool
An ESnext spec-compliant `Array.prototype.findLastIndex` shim/polyfill/replacement that works as far down as ES3.
ES proposal-spec-compliant Object.fromEntries shim.
An ES7/ES2016 spec-compliant `Array.prototype.includes` shim/polyfill/replacement that works as far down as ES3.
ES2017 spec-compliant Object.values shim.