CoffeeScript Support

In this section:

• CoffeeScript Support
  • Overview
  • Preparing for CoffeeScript development
  • Coding assistance
• Compiling CoffeeScript to JavaScript
• Running CoffeeScript
• Debugging CoffeeScript

Overview

CLion provides CoffeeScript support. CLion recognizes *.coffee files, and allows you to edit them providing full range of coding assistance without any additional steps from your side. CoffeeScript files are marked with icon.

To run, debug, and test your code, you will need it translated into JavaScript which requires a compiler and Node.js. For more details on CoffeeScript compilation, see Compiling CoffeeScript to JavaScript.

Preparing for CoffeeScript development

1. Make sure the CoffeeScript plugin is enabled. The plugin is bundled with CLion and activated by default. If the plugin is not activated, enable it on the Plugins page of the Settings / Preferences Dialog as described in Enabling and Disabling Plugins.
2. Download and install the Node.js runtime environment.
3. Configure the Node.js interpreter in CLion:
   1. Open the by choosing File | Settings for Windows and Linux or CLion | Preferences for macOS, and click Node.js and NPM under Languages & Frameworks.
   2. On the Node.js and NPM page that opens, specify the location of the desired Node.js interpreter.
   See Configuring Node.js Interpreters for details.

Coding assistance

CoffeeScript support includes:

• Code completion for keywords, labels, variables, parameters and functions.
• Error and syntax highlighting.
• Code formatting and folding.
• Refactoring:
  • Common refactoring procedures, such as extract method , inline, rename/move, etc.
  • CoffeeScript-specific refactoring procedures, such as change signature, extract parameter, extract variable.

  See JavaScript-Specific Refactorings for details.

• Code generation
  • Generating code stubs based on file templates during file creation.
  • Ability to create line and block comments (Ctrl+Slash/Ctrl+Shift+Slash).
• Navigation through source code
  • Navigating with Structure View.
  • Navigate | Declaration (Ctrl+B).
  • Navigate | Implementation (Ctrl+Alt+B) from overridden method / subclassed class.
  • Navigate | Symbol (Ctrl+Shift+Alt+N.
• Compiling to JavaScript for further running, debugging, and testing, see Running CoffeeScript and Debugging CoffeeScript.
• Executing CoffeeScript files involves:
  • Ability to preview results of CoffeeScript files compilation to JavaScript.
  • Ability to launch CoffeeScript files from the context menu.
  • Run/debug configuration for NodeJS includes the ability to use CoffeeScript plugin.