Polyfills and shims

12-month change compares the average of the last 4 weeks of downloads with the first 4 weeks of the 52-week series. Gzip size is for the whole package, as measured by Bundlephobia. "-" means the value has not been fetched.

• path-data-polyfillPolyfill for SVG 2 getPathData() and setPathData() methods
• canvas-to-blobCanvas toBlob polyfill
• set.prototype.symmetricdifferenceAn ESnext spec-compliant `Set.prototype.symmetricDifference` shim/polyfill/replacement that works as far down as ES3
• ember-weakmapES2015 WeakMap polyfill for Ember.WeakMap
• minirafES2015 module to polyfill requestAnimationFrame
• stream.pipeline-shimPolyfill/shim for stream.pipeline in node versions < v10
• ricrequestIdleCallback polyfill
• array-foreachArray#forEach ponyfill for older browsers
• nodelist-foreach-polyfillSimple polyfill for the NodeList.forEach method.
• mp3-mediarecorderMediaRecorder ponyfill that records audio as mp3
• ember-cli-element-closest-polyfillEmber cli addon that includes a polyfill for closest() if needed.
• react-dnd-scrollzoneA cross browser solution to scrolling during drag and drop.
• focus-within-polyfillSmall vanilla javascript that feature detect the :focus-within pseudo selector and polyfills it with a standard css class if necessary.
• flex-gap-polyfillA PostCSS polyfill for adding gap between flex items
• intersection-observer-polyfillA polyfill of IntersectionObserver API
• string.prototype.towellformedAn ESnext spec-compliant `String.prototype.toWellFormed` shim/polyfill/replacement that works as far down as ES3.
• fullscreen-api-polyfillW3C's Fullscreen API Polyfill
• @preflower/barcode-detector-polyfillA WebAssembly polyfill for the Barcode Detection API
• element-scroll-polyfillA minimal polyfill for Element scroll extensions.
• extension-developDevelop, build, preview, and package Extension.js projects.
• es7-object-polyfillA polyfill for missing Object.values / Object.entries
• esbuild-shim-pluginA plugin for esbuild to shim imports for commonjs and esm modules.
• image-captureMediaStream ImageCapture polyfill: takePhoto(), grabFrame() and more
• react-native-console-time-polyfillconsole.time, console.timeLog and console.timeEnd polyfill for react-native
• typescript-mapES6 Map Implemented in TypeScript
• array.fromA robust & optimized `Array.from` polyfill, based on the ECMAScript 6 specification.
• @adobe/focus-ring-polyfillA simple polyfill for the `:focus-ring` spec
• ima-babel6-polyfillBabel 6 polyfill for IE<=10
• array.prototype.concatES spec-compliant `Array.prototype.concat` shim/polyfill/replacement that works as far down as ES3.
• airbnb-browser-shimsBrowser and JS shims used by Airbnb.
• fs.promisesfs.promises polyfill
• array.prototype.someAn ES5 spec-compliant `Array.prototype.some` shim/polyfill/replacement that works as far down as ES3.
• audio-context-polyfillJust code for one API by enjoying this polyfill for the Web Audio API.
• react-native-webrtc-web-shimA shim for React Native WebRTC to enable support for React Native Web
• hyphenopolyHyphenation for node and Polyfill for client-side hyphenation.
• weakmapShim for WeakMap with non-leaky O(1) lookup time
• buffer-v6-polyfillA polyfill for older versions of node.js for the node v6 Buffer
• console-assertStandardizer for node's console.assert
• md-gum-polyfillA polyfill to use the Promise-flavoured, `mediaDevices` based version of getUserMedia, in browsers that support *some sort* of getUserMedia.
• shim-keyboard-event-keyTiny KeyboardEvent#key shim for IE and MS Edge
• @mentra/jspolyfillMentraJS polyfill bundle — installed into each per-miniapp JSContext (iOS-JSC, Android-QuickJS) at spawn time. Provides browser-like globals (console, timers, fetch, WebSocket, localStorage, crypto.subtle) over a single __dispatch native bridge, plus the
• rangeslider.jsSimple, small and fast jQuery polyfill for the HTML5 <input type="range"> slider element
• raf.jsYet another requestAnimationFrame polyfill.
• ember-hash-helper-polyfillThe default blueprint for ember-cli addons.
• @netless/canvas-polyfilla polyfill for canvas getTransform, ellipse, resetTransform API
• @open-wc/rollup-plugin-polyfills-loaderPlugin for generating an html file with rollup
• groupby-polyfillsmall zero dependent polyfill for `Object.groupBy` and `Map.groupBy`
• context-filter-polyfillPolyfills the `CanvasRenderingContext2d` and `OffscreenCanvasRenderingContext2D` capability of adopting CSS3 filters on canvas contexts (at least partially).
• @soatok/elliptic-to-nobleReplace npm elliptic with noble-curves, including all dependencies.
• sugar-dateDate module for the Sugar Javascript utility library.

• scroll-into-view-if-needed vs @juggle/resize-observer
• css-vars-ponyfill vs object-fit-images