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### Made by [@kilianvalkhof](https://twitter.com/kilianvalkhof) |
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#### Other projects: |
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- 💻 [Polypane](https://polypane.app) - Develop responsive websites and apps twice as fast on multiple screens at once |
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- 🖌️ [Superposition](https://superposition.design) - Kickstart your design system by extracting design tokens from your website |
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- 🗒️ [FromScratch](https://fromscratch.rocks) - A smart but simple autosaving scratchpad |
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--- |
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# Electron-to-Chromium [](https://www.npmjs.com/package/electron-to-chromium) [](https://travis-ci.org/Kilian/electron-to-chromium) [](https://www.npmjs.com/package/electron-to-chromium) [](https://codecov.io/gh/Kilian/electron-to-chromium)[](https://app.fossa.io/projects/git%2Bgithub.com%2FKilian%2Felectron-to-chromium?ref=badge_shield) |
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This repository provides a mapping of Electron versions to the Chromium version that it uses. |
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This package is used in [Browserslist](https://github.com/ai/browserslist), so you can use e.g. `electron >= 1.4` in [Autoprefixer](https://github.com/postcss/autoprefixer), [Stylelint](https://github.com/stylelint/stylelint), [babel-preset-env](https://github.com/babel/babel-preset-env) and [eslint-plugin-compat](https://github.com/amilajack/eslint-plugin-compat). |
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**Supported by:** |
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<a href="https://m.do.co/c/bb22ea58e765"> |
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<img src="https://opensource.nyc3.cdn.digitaloceanspaces.com/attribution/assets/SVG/DO_Logo_horizontal_blue.svg" width="201px"> |
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</a> |
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## Install |
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Install using `npm install electron-to-chromium`. |
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## Usage |
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To include Electron-to-Chromium, require it: |
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```js |
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var e2c = require('electron-to-chromium'); |
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``` |
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### Properties |
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The Electron-to-Chromium object has 4 properties to use: |
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#### `versions` |
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An object of key-value pairs with a _major_ Electron version as the key, and the corresponding major Chromium version as the value. |
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```js |
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var versions = e2c.versions; |
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console.log(versions['1.4']); |
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// returns "53" |
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``` |
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#### `fullVersions` |
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An object of key-value pairs with a Electron version as the key, and the corresponding full Chromium version as the value. |
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```js |
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var versions = e2c.fullVersions; |
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console.log(versions['1.4.11']); |
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// returns "53.0.2785.143" |
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``` |
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#### `chromiumVersions` |
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An object of key-value pairs with a _major_ Chromium version as the key, and the corresponding major Electron version as the value. |
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```js |
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var versions = e2c.chromiumVersions; |
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console.log(versions['54']); |
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// returns "1.4" |
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``` |
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#### `fullChromiumVersions` |
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An object of key-value pairs with a Chromium version as the key, and an array of the corresponding major Electron versions as the value. |
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```js |
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var versions = e2c.fullChromiumVersions; |
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console.log(versions['54.0.2840.101']); |
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// returns ["1.5.1", "1.5.0"] |
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``` |
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### Functions |
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#### `electronToChromium(query)` |
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Arguments: |
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* Query: string or number, required. A major or full Electron version. |
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A function that returns the corresponding Chromium version for a given Electron function. Returns a string. |
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If you provide it with a major Electron version, it will return a major Chromium version: |
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```js |
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var chromeVersion = e2c.electronToChromium('1.4'); |
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// chromeVersion is "53" |
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``` |
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If you provide it with a full Electron version, it will return the full Chromium version. |
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```js |
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var chromeVersion = e2c.electronToChromium('1.4.11'); |
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// chromeVersion is "53.0.2785.143" |
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``` |
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If a query does not match a Chromium version, it will return `undefined`. |
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```js |
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var chromeVersion = e2c.electronToChromium('9000'); |
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// chromeVersion is undefined |
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``` |
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#### `chromiumToElectron(query)` |
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Arguments: |
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* Query: string or number, required. A major or full Chromium version. |
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Returns a string with the corresponding Electron version for a given Chromium query. |
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If you provide it with a major Chromium version, it will return a major Electron version: |
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```js |
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var electronVersion = e2c.chromiumToElectron('54'); |
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// electronVersion is "1.4" |
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``` |
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If you provide it with a full Chrome version, it will return an array of full Electron versions. |
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```js |
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var electronVersions = e2c.chromiumToElectron('56.0.2924.87'); |
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// electronVersions is ["1.6.3", "1.6.2", "1.6.1", "1.6.0"] |
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``` |
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If a query does not match an Electron version, it will return `undefined`. |
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```js |
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var electronVersion = e2c.chromiumToElectron('10'); |
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// electronVersion is undefined |
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``` |
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#### `electronToBrowserList(query)` **DEPRECATED** |
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Arguments: |
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* Query: string or number, required. A major Electron version. |
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_**Deprecated**: Browserlist already includes electron-to-chromium._ |
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A function that returns a [Browserslist](https://github.com/ai/browserslist) query that matches the given major Electron version. Returns a string. |
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If you provide it with a major Electron version, it will return a Browserlist query string that matches the Chromium capabilities: |
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```js |
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var query = e2c.electronToBrowserList('1.4'); |
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// query is "Chrome >= 53" |
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``` |
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If a query does not match a Chromium version, it will return `undefined`. |
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```js |
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var query = e2c.electronToBrowserList('9000'); |
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// query is undefined |
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``` |
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### Importing just versions, fullVersions, chromiumVersions and fullChromiumVersions |
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All lists can be imported on their own, if file size is a concern. |
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#### `versions` |
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```js |
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var versions = require('electron-to-chromium/versions'); |
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``` |
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#### `fullVersions` |
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```js |
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var fullVersions = require('electron-to-chromium/full-versions'); |
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``` |
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#### `chromiumVersions` |
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```js |
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var chromiumVersions = require('electron-to-chromium/chromium-versions'); |
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``` |
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#### `fullChromiumVersions` |
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```js |
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var fullChromiumVersions = require('electron-to-chromium/full-chromium-versions'); |
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``` |
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## Updating |
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This package will be updated with each new Electron release. |
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To update the list, run `npm run build.js`. Requires internet access as it downloads from the canonical list of Electron versions. |
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To verify correct behaviour, run `npm test`. |
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## License |
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[](https://app.fossa.io/projects/git%2Bgithub.com%2FKilian%2Felectron-to-chromium?ref=badge_large)
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