eslint-plugin-roblox-ts

A collection of ESLint rules specifically targeted to flag common issues when using roblox-ts. These rules are nearly all designed to help avoid compiler errors for features that are not supported by the roblox-ts compiler, despite being valid TypeScript.

These rules should help users learn roblox-ts when coming from Lua, as well as guiding users who already know TypeScript to avoid unsupported features.

Rules

🔧 Automatically fixable by the --fix CLI option.
💡 Manually fixable by editor suggestions.
💭 Requires type information.

Name	Description	🔧	💡	💭
lua-truthiness	Enforces the use of lua truthiness			💭
misleading-lua-tuple-checks	Disallow the use of LuaTuple in conditional expressions	🔧		💭
no-any	Disallow values of type any. Use unknown instead	🔧	💡
no-array-pairs	Disallow usage of pairs() and ipairs() with Array			💭
no-enum-merging	Disallow merging enum declarations
no-export-assignment-let	Disallow using export = on a let variable
no-for-in	Disallow iterating with a for-in loop	🔧
no-function-expression-name	Disallow the use of function expression names	🔧
no-get-set	Disallow getters and setters	🔧
no-implicit-self	Enforce the use of . instead of : for method calls	🔧
no-invalid-identifier	Disallow the use of Luau reserved keywords as identifiers
no-namespace-merging	Disallow merging namespace declarations
no-null	Disallow usage of the null keyword	🔧
no-object-math	Enforce DataType math methods over operators	🔧		💭
no-post-fix-new	Disallow .new() on objects without a .new() method	🔧		💭
no-preceding-spread-element	Disallow spread elements not last in a list of arguments			💭
no-private-identifier	Disallow the use of private identifiers (#)	🔧
no-unsupported-syntax	Disallow unsupported syntax in roblox-ts
no-user-defined-lua-tuple	Disallow usage of LuaTuple type keyword and $tuple() calls	🔧
no-value-typeof	Disallow using typeof to check for value types
prefer-get-players	Enforces the use of Players.GetPlayers() instead of Players.GetChildren()	🔧
prefer-task-library	Enforce use of task library alternatives	🔧
size-method	Enforce use of .size() instead of .length or .size property	🔧		💭

Installation

You'll first need to install ESLint v8.0.0 or greater:

npm install eslint --save-dev

ESLint Version Support:

• ESLint v8.x: ✅ Fully supported
• ESLint v9.x: ✅ Fully supported

ESLint Version Support:

• ESLint v8.x: ✅ Fully supported
• ESLint v9.x: ✅ Fully supported

Next, install eslint-plugin-roblox-ts:

npm install eslint-plugin-roblox-ts --save-dev

Usage

The easiest way to use eslint-plugin-roblox-ts is to use the ready-made config. Config files use all the rules of the current plugin, but you can override them.

Flat Config (eslint.config.ts)

import roblox from 'eslint-plugin-roblox-ts'

export default [
	roblox.configs.recommended,
]

Legacy Config (.eslintrc)

{
	"extends": ["plugin:roblox-ts/recommended-legacy"]
}

Manual Configuration

Altertatively, add eslint-plugin-roblox-ts to the plugins section of the ESLint configuration file and define the list of rules you will use.

import roblox from 'eslint-plugin-roblox-ts'

export default [
	{
		plugins: {
			"roblox-ts": roblox,
		},
		rules: {
			"roblox-ts/no-any": ["error", { fixToUnknown: true }],
		},
	},
];

Legacy Config (.eslintrc)

{
	"extends": ["plugin:roblox-ts/recommended-legacy"]
}

Alternatively, add eslint-plugin-roblox-ts to the plugins section of your .eslintrc configuration file and configure the rules you want to use.

{
	"plugins": [
		"roblox-ts"
	],
	"rules": {
		"roblox-ts/no-any": ["error", { "fixToUnknown": true }],
		"roblox-ts/no-null": "error",
		"roblox-ts/no-object-math": "error"
	}
}

Versioning Policy

This plugin is following Semantic Versioning and ESLint's Semantic Versioning Policy.

Contributing

See Contributing Guide.

License

MIT License © roblox-ts