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THIS REPOSITORY HAS BEEN ARCHIVED. SEE #290

eslint-plugin-typescript

TypeScript support for ESLint. (This is still in the very early stages, so please be patient.)

The below readme is for the upcoming 1.0.0 release. Please see this tag for the current NPM version (0.14.0)

Installation

You'll first need to install ESLint:

$ npm i eslint --save-dev

Next, install typescript if you haven’t already:

$ npm i typescript@~3.1.1 --save-dev

Last, install eslint-plugin-typescript:

$ npm install eslint-plugin-typescript --save-dev

Note: If you installed ESLint globally (using the -g flag) then you must also install eslint-plugin-typescript globally.

Usage

Add eslint-plugin-typescript/parser to the parser field and typescript to the plugins section of your .eslintrc configuration file:

{
    "parser": "eslint-plugin-typescript/parser",
    "plugins": ["typescript"]
}

Note: The plugin provides its own version of the typescript-eslint-parser via eslint-plugin-typescript/parser. This helps us guarantee 100% compatibility between the plugin and the parser.

Then configure the rules you want to use under the rules section.

{
    "parser": "eslint-plugin-typescript/parser",
    "plugins": ["typescript"],
    "rules": {
        "typescript/rule-name": "error"
    }
}

You can also enable all the recommended rules at once. Add plugin:typescript/recommended in extends:

{
    "extends": ["plugin:typescript/recommended"]
}

Supported Rules

Key: ✔️ = recommended, 🔧 = fixable

Name	Description	✔️	🔧
`typescript/adjacent-overload-signatures`	Require that member overloads be consecutive (`adjacent-overload-signatures` from TSLint)	✔️
`typescript/array-type`	Requires using either `T[]` or `Array<T>` for arrays (`array-type` from TSLint)	✔️	🔧
`typescript/ban-types`	Enforces that types will not to be used (`ban-types` from TSLint)	✔️	🔧
`typescript/camelcase`	Enforce camelCase naming convention	✔️
`typescript/class-name-casing`	Require PascalCased class and interface names (`class-name` from TSLint)	✔️
`typescript/explicit-function-return-type`	Require explicit return types on functions and class methods	✔️
`typescript/explicit-member-accessibility`	Require explicit accessibility modifiers on class properties and methods (`member-access` from TSLint)	✔️
`typescript/generic-type-naming`	Enforces naming of generic type variables
`typescript/indent`	Enforce consistent indentation (`indent` from TSLint)	✔️	🔧
`typescript/interface-name-prefix`	Require that interface names be prefixed with `I` (`interface-name` from TSLint)	✔️
`typescript/member-delimiter-style`	Require a specific member delimiter style for interfaces and type literals	✔️	🔧
`typescript/member-naming`	Enforces naming conventions for class members by visibility.
`typescript/member-ordering`	Require a consistent member declaration order (`member-ordering` from TSLint)
`typescript/no-angle-bracket-type-assertion`	Enforces the use of `as Type` assertions instead of `<Type>` assertions (`no-angle-bracket-type-assertion` from TSLint)	✔️
`typescript/no-array-constructor`	Disallow generic `Array` constructors	✔️	🔧
`typescript/no-empty-interface`	Disallow the declaration of empty interfaces (`no-empty-interface` from TSLint)	✔️
`typescript/no-explicit-any`	Disallow usage of the `any` type (`no-any` from TSLint)	✔️
`typescript/no-extraneous-class`	Forbids the use of classes as namespaces (`no-unnecessary-class` from TSLint)
`typescript/no-inferrable-types`	Disallows explicit type declarations for variables or parameters initialized to a number, string, or boolean. (`no-inferrable-types` from TSLint)	✔️	🔧
`typescript/no-misused-new`	Enforce valid definition of `new` and `constructor`. (`no-misused-new` from TSLint)	✔️
`typescript/no-namespace`	Disallow the use of custom TypeScript modules and namespaces (`no-namespace` from TSLint)	✔️
`typescript/no-non-null-assertion`	Disallows non-null assertions using the `!` postfix operator (`no-non-null-assertion` from TSLint)	✔️
`typescript/no-object-literal-type-assertion`	Forbids an object literal to appear in a type assertion expression (`no-object-literal-type-assertion` from TSLint)	✔️
`typescript/no-parameter-properties`	Disallow the use of parameter properties in class constructors. (`no-parameter-properties` from TSLint)	✔️
`typescript/no-this-alias`	Disallow aliasing `this` (`no-this-assignment` from TSLint)
`typescript/no-triple-slash-reference`	Disallow `/// <reference path="" />` comments (`no-reference` from TSLint)	✔️
`typescript/no-type-alias`	Disallow the use of type aliases (`interface-over-type-literal` from TSLint)
`typescript/no-unused-vars`	Disallow unused variables (`no-unused-variable` from TSLint)	✔️
`typescript/no-use-before-define`	Disallow the use of variables before they are defined	✔️
`typescript/no-var-requires`	Disallows the use of require statements except in import statements (`no-var-requires` from TSLint)	✔️
`typescript/prefer-interface`	Prefer an interface declaration over a type literal (type T = { ... }) (`interface-over-type-literal` from TSLint)	✔️	🔧
`typescript/prefer-namespace-keyword`	Require the use of the `namespace` keyword instead of the `module` keyword to declare custom TypeScript modules. (`no-internal-module` from TSLint)	✔️	🔧
`typescript/type-annotation-spacing`	Require consistent spacing around type annotations (`typedef-whitespace` from TSLint)	✔️	🔧

License

bradzacher/eslint-plugin-typescript

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