rrweb/docs/development/coding-style.md

Coding Style

These are the style guidelines for coding in Electron.

You can run yarn lint to show any style issues detected by eslint.

General Code

• End files with a newline.
• Using a plain return when returning explicitly at the end of a function.
  • Not return null, return undefined, null or undefined

Documentation

• Write remark markdown style.

TypeScript

• 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
  • const for requires and other constants. If the value is a primitive, use uppercase naming (eg const NUMBER_OF_RETRIES = 5).
  • let for defining variables
  • Arrow functions instead of function () { }
  • Template literals instead of string concatenation using +

Naming Things

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

• When the module itself is a class like BrowserWindow, use PascalCase.
• When the module is a set of APIs, like globalShortcut, use camelCase.
• 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.