Coding Style

These are the style guidelines for coding in Electron.

You can run npm run lint to show any style issues detected by cpplint and eslint.

C++ and Python

For C++ and Python, we follow Chromium's Coding Style. You can use clang-format to format the C++ code automatically. There is also a script script/ to check whether all files conform.

The Python version we are using now is Python 2.7.

The C++ code uses a lot of Chromium's abstractions and types, so it's recommended to get acquainted with them. A good place to start is Chromium's Important Abstractions and Data Structures document. The document mentions some special types, scoped types (that automatically release their memory when going out of scope), logging mechanisms etc.


  • Write standard JavaScript style.
  • File names should be concatenated with - instead of _, e.g. file-name.js rather than file_name.js, because in github/atom module names are usually in the module-name form. This rule only applies to .js files.
  • Use newer ES6/ES2015 syntax where appropriate

Naming Things

Electron APIs uses the same capitalization scheme as Node.js:

  • When the module itself is a class like BrowserWindow, use CamelCase.
  • When the module is a set of APIs, like globalShortcut, use mixedCase.
  • When the API is a property of object, and it is complex enough to be in a separate chapter like win.webContents, use mixedCase.
  • For other non-module APIs, use natural titles, like <webview> Tag or Process Object.

When creating a new API, it is preferred to use getters and setters instead of jQuery's one-function style. For example, .getText() and .setText(text) are preferred to .text([text]). There is a discussion on this.

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