Does SailsJS support ES6?

Question

Is there a way to get ES6 in sails.js?

Answer 1

SailsJS is just a framework written via ES5 syntax and it doesn't need to support ES6.

You can write project with ES6 syntax as you usually do and use Babel\Traceur\whatever for running.

My flow is following:

• Create Sails project;
• Install babel as devDependencies;
• Update npm start script in package.json with "start": "babel-node app.js";

That's it. I can write ES6\7 code in my controllers\models\etc and run the server via npm start command. It works as usual as you wrote it with ES5 syntax.

Babel Transpiler

Babel Node

Answer 2

Vishnu's answer has you covered.

The explicit list of ES6 features available in the latest node release is here https://nodejs.org/en/docs/es6/

Which ES6 features ship with Node.js by default (no runtime flag required)?

• let (strict mode only)
• const
• function-in-blocks (strict mode only)
  • As of v8 3.31.74.1, block-scoped declarations are intentionally implemented with a non-compliant limitation to strict mode code. Developers should be aware that this will change as v8 continues towards ES6 specification compliance.
• Classes (strict mode only)
• Collections
• Map
• WeakMap
• Set
• WeakSet
• Typed arrays
• Generators
• Binary and Octal literals
• Object literal extensions (shorthand properties and methods)
• Promises
• New String methods
• Symbols
• Template strings
• Arrow Functions