enabled

Check if a certain debug flag is enabled.
v2.0.0 URL: https://unpkg.com/enabled@2.0.0/index.js
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enableddebugdiagnosticsflagenvvariablelocalstorage

localforage

Offline storage, improved.
v1.10.0 URL: https://unpkg.com/localforage@1.10.0/dist/localforage.js
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indexeddblocalstoragestoragewebsql

broadcast-channel

A BroadcastChannel that works in New Browsers, Old Browsers, WebWorkers, NodeJs, Deno and iframes
v7.1.0 URL: https://unpkg.com/broadcast-channel@7.1.0/dist/lib/index.es5.js
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broadcast-channelbroadcastchannelbroadcastpolyfillshimeventslocalstorageindexeddbpostMessagecrosstabipcleader-electionqueueinter-process

idb-keyval

A super-simple-small keyval store built on top of IndexedDB
v6.2.2 URL: https://unpkg.com/idb-keyval@6.2.2/dist/iife-compat.js
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idbindexeddbstorekeyvallocalstoragestoragepromise

jest-localstorage-mock

Auto mock all localstorage and sessionstorage APIs for your Jest tests
v2.4.26 URL: https://unpkg.com/jest-localstorage-mock@2.4.26/dist/setup.js
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jesttestmocklocalstoragesessionstoragestoragenodebrowser