@electron/fiddle-core

中文文档

2.2.2发布于 2026/06/30MITES Module构建来源已验证近 30 天下载 4.4万

Run fiddles from anywhere, on any Electron release

文档目录12 节

CLI
API
Hello, World!
Running Fiddles
Running with Windows MSIX Identity
Managing Electron Installations
Versions
Advanced Use
child_process.Spawn
Using Local Builds
Using Custom Paths
Manually Creating Fiddle Objects

@electron/fiddle-core

Run fiddles from anywhere, on any Electron release

CLI

# fiddle-core run ver (gist | repo URL | folder)
# fiddle-core test ver (gist | repo URL | folder)
# fiddle-core bisect ver1 ver2 (gist | repo URL | folder)
#
# Run with Windows MSIX identity (Windows only):
# fiddle-core run:msix ver (gist | repo URL | folder)
# fiddle-core test:msix ver (gist | repo URL | folder)
# fiddle-core start:msix ver (gist | repo URL | folder)
#
# Examples:

$ fiddle-core run 12.0.0 /path/to/fiddle
$ fiddle-core test 12.0.0 642fa8daaebea6044c9079e3f8a46390
$ fiddle-core bisect 8.0.0 13.0.0 https://github.com/my/testcase.git

# Run with Windows MSIX identity (gives Electron a Windows app identity)
$ fiddle-core run:msix 30.0.0 /path/to/fiddle


$ fiddle-core bisect 8.0.0 13.0.0 642fa8daaebea6044c9079e3f8a46390
...
🏁 finished bisecting across 438 versions...
# 219 🟢 passed 11.0.0-nightly.20200611 (test #1)
# 328 🟢 passed 12.0.0-beta.12 (test #2)
# 342 🟢 passed 12.0.0-beta.29 (test #5)
# 346 🟢 passed 12.0.1 (test #7)
# 347 🔴 failed 12.0.2 (test #9)
# 348 🔴 failed 12.0.3 (test #8)
# 349 🔴 failed 12.0.4 (test #6)
# 356 🔴 failed 12.0.11 (test #4)
# 383 🔴 failed 13.0.0-nightly.20210108 (test #3)

🏁 Done bisecting
🟢 passed 12.0.1
🔴 failed 12.0.2
Commits between versions:
↔ https://github.com/electron/electron/compare/v12.0.1...v12.0.2
Done in 28.19s.

API

Hello, World!

import { Runner } from '@electron/fiddle-core';

const runner = await Runner.create();
const { status } = await runner.run('13.1.7', '/path/to/fiddle');
console.log(status);

Running Fiddles

import { Runner } from '@electron/fiddle-core';

const runner = await Runner.create();

// use a specific Electron version to run code from a local folder
const result = await runner.run('13.1.7', '/path/to/fiddle');

// use a specific Electron version to run code from a github gist
const result = await runner.run('14.0.0-beta.17', '642fa8daaebea6044c9079e3f8a46390');

// use a specific Electron version to run code from a git repo
const result = await runner.run('15.0.0-alpha.1', 'https://github.com/my/repo.git');

// use a specific Electron version to run code from iterable filename/content pairs
const files = new Map<string, string>([['main.js', '"use strict";']]);
const result = await runner.run('15.0.0-alpha.1', files);

// bisect a regression test across a range of Electron versions
const result = await runner.bisect('10.0.0', '13.1.7', path_or_gist_or_git_repo);

// run with Windows MSIX identity (Windows only)
// This registers Electron as a sparse MSIX package, giving it a Windows app identity
const result = await runner.run('30.0.0', fiddle, { runWithIdentity: true });

// see also `Runner.spawn()` in Advanced Use

Running with Windows MSIX Identity

On Windows, you can run Electron with a sparse MSIX package identity. This gives Electron a Windows app identity, which is required for certain Windows features.

import { Runner } from '@electron/fiddle-core';

const runner = await Runner.create();

// Run fiddle with Windows MSIX identity
const result = await runner.run('30.0.0', fiddle, {
  runWithIdentity: true,
});

When runWithIdentity is true, fiddle-core will:

Generate an AppxManifest.xml in the Electron installation directory
Register Electron as a sparse MSIX package using Add-AppxPackage
Run Electron via its registered execution alias

Managing Electron Installations

import { Installer, ProgressObject } from '@electron/fiddle-core';

const installer = new Installer();
installer.on('state-changed', ({version, state}) => {
  console.log(`Version "${version}" state changed: "${state}"`);
});

// download a version of electron
await installer.ensureDownloaded('12.0.15');
// expect(installer.state('12.0.5').toBe('downloaded');

// download a version with callback
const callback = (progress: ProgressObject) => {
  const percent = progress.percent * 100;
  console.log(`Current download progress %: ${percent.toFixed(2)}`);
};
await installer.ensureDownloaded('12.0.15', {
  progressCallback: callback,
});

// download a version with a specific mirror
const npmMirrors = {
  electronMirror: 'https://npmmirror.com/mirrors/electron/',
  electronNightlyMirror: 'https://npmmirror.com/mirrors/electron-nightly/',
},

await installer.ensureDownloaded('12.0.15', {
  mirror: npmMirrors,
});

// remove a download
await installer.remove('12.0.15');
// expect(installer.state('12.0.15').toBe('not-downloaded');

// install a specific version for the runner to use
const exec = await installer.install('11.4.10');

// Installing with callback and custom mirrors
await installer.install('11.4.10', {
  progressCallback: callback,
  mirror: npmMirrors,
});
// expect(installer.state('11.4.10').toBe('installed');
// expect(fs.accessSync(exec, fs.constants.X_OK)).toBe(true);

Versions

import { ElectronVersions } from '@electron/fiddle-core';

// - querying specific versions
const elves = await ElectronVersions.create();
// expect(elves.isVersion('12.0.0')).toBe(true);
// expect(elves.isVersion('12.99.99')).toBe(false);
const { versions } = elves;
// expect(versions).find((ver) => ver.version === '12.0.0').not.toBeNull();
// expect(versions[versions.length - 1]).toStrictEqual(elves.latest);

// - supported major versions
const { supportedMajors } = elves;
// expect(supportedMajors.length).toBe(4);

// - querying prerelease branches
const { supportedMajors, prereleaseMajors } = elves;
const newestSupported = Math.max(...supportedMajors);
const oldestPrerelease = Math.min(...prereleaseMajors);
// expect(newestSupported + 1).toBe(oldestPrerelease);

// - get all releases in a range
let range = releases.inRange('12.0.0', '12.0.15');
// expect(range.length).toBe(16);
// expect(range.shift().version).toBe('12.0.0');
// expect(range.pop().version).toBe('12.0.15');

// - get all 10-x-y releases
range = releases.inMajor(10);
// expect(range.length).toBe(101);
// expect(range.shift().version).toBe('10.0.0-nightly.20200209');
// expect(range.pop().version).toBe('10.4.7');

Advanced Use

child_process.Spawn

import { Runner } from '@electron/fiddle-core';

// third argument is same as node.spawn()'s opts
const child = await runner.spawn('12.0.1', fiddle, nodeSpawnOpts);

// see also `Runner.run()` and `Runner.bisect()` above

Using Local Builds

import { Runner } from '@electron/fiddle-core';

const runner = await Runner.create();
const result = await runner.run('/path/to/electron/build', fiddle);

Using Custom Paths

import { Paths, Runner } from '@electron/fiddle-core';

const paths: Paths = {
  // where to store zipfiles of downloaded electron versions
  electronDownloads: '/tmp/my/electron-downloads',

  // where to install an electron version to be used by the Runner
  electronInstall: '/tmp/my/electron-install',

  // where to save temporary copies of fiddles
  fiddles: '/tmp/my/fiddles',

  // where to save releases fetched from online
  versionsCache: '/tmp/my/releases.json',
});

const runner = await Runner.create({ paths });

Manually Creating Fiddle Objects

Runner will do this work for you; but if you want finer-grained control over the lifecycle of your Fiddle objects, you can instantiate them yourself:

import { FiddleFactory } from '@electron/fiddle-core';

const factory = new FiddleFactory();

// load a fiddle from a local directory
const fiddle = await factory.from('/path/to/fiddle'));

// ...or from a gist
const fiddle = await factory.from('642fa8daaebea6044c9079e3f8a46390'));

// ...or from a git repo
const fiddle = await factory.from('https://github.com/my/testcase.git'));

// ...or from an iterable of key / value entries
const fiddle = await factory.from([
  ['main.js', '"use strict";'],
]);

版本与发布记录

@electron/fiddle-core 共发布 25 个版本，首次发布于 2022/10/06；过去 12 个月发布了 6 个版本。最新版本附带 npm provenance 构建来源证明，可追溯到公开的 CI 构建记录。

版本	发布日期	距今
`2.2.2`latest	2026/06/30	4 个月前
`2.2.1`	2026/06/12	5 个月前
`2.2.0`	2026/05/05	6 个月前
`2.1.2`	2026/05/05	6 个月前
`2.1.1`	2026/04/05	7 个月前
`2.1.0`	2026/02/04	9 个月前

关于 @electron/fiddle-core 的常见问题

@electron/fiddle-core 是什么？

Run fiddles from anywhere, on any Electron release

如何安装 @electron/fiddle-core？

在项目目录运行 npm install @electron/fiddle-core，或使用 pnpm add / yarn add / bun add。它还提供命令行工具 fiddle-core，可以用 npx fiddle-core 直接运行。

@electron/fiddle-core 支持 TypeScript 吗？

该包的 package.json 没有声明类型入口。需要类型提示时，可以在 npm 上查找社区维护的 @types/electron__fiddle-core 是否存在。

@electron/fiddle-core 支持 ESM 还是 CommonJS？

以 ES Module 形式发布，推荐使用 import 引入。在 CommonJS 项目中，Node.js 20.19+ / 22.12+ 可以直接 require() 不含顶层 await 的 ES Module，更早的版本需要改用动态 import()。

@electron/fiddle-core 需要什么版本的 Node.js？

package.json 的 engines 字段要求 Node.js >=22.12.0。版本不符时 npm 默认只给出警告，开启 engine-strict 后会拒绝安装。

@electron/fiddle-core 可以商用吗？

@electron/fiddle-core 使用 MIT 许可。宽松许可：允许商业使用、修改和再分发，通常只需在分发时保留原版权与许可声明。以上为概括，不构成法律意见，请以许可原文为准。

@electron/fiddle-core 的下载量有多少？

根据 npm 官方下载统计，@electron/fiddle-core 在 2026/10/14 – 2026/11/12 这 30 天内被下载 44,110 次，日均约 1,470 次。下载量会把 CI 构建、镜像同步和作为其他包依赖的安装一并计入，适合横向比较热度，不能直接等同于使用人数。

@electron/fiddle-core 还在维护吗？

最新版本 2.2.2 发布于 2026/06/30（4 个月前）；至今共发布 25 个版本，其中过去 12 个月发布了 6 个；首次发布于 2022/10/06。发布频率只是参考信号：功能稳定的工具可能很少需要更新，建议结合源码仓库的 issue 和提交记录判断。

npm install @electron/fiddle-core

pnpmpnpm add @electron/fiddle-core
yarnyarn add @electron/fiddle-core
bunbun add @electron/fiddle-core

命令行npx fiddle-core

在你的项目目录中运行此命令。

近 30 天下载

44,110

约 4.4万次日均 1,470 次

统计周期 2026/10/14 – 2026/11/12
数据来自 npm 官方下载统计，今天更新

最新版本2.2.2发布于 4 个月前

开源许可MIT宽松许可

包体积73.9 kB22 个文件 · 解压后

运行依赖8 个

模块格式ES Module

TypeScript未声明类型可查找 @types/electron__fiddle-core

Node.js>=22.12.0

发布版本25 个近 12 个月 6 个

首次发布2022/10/064 年前

元数据更新2026/06/30

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