eslint-plugin-typescript

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

Installation

You'll first need to install ESLint:

$ npm i eslint --save-dev

Next, install typescript-eslint-parser:

$ npm install typescript-eslint-parser --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 typescript-eslint-parser to the parser field and typescript to the plugins section of your .eslintrc configuration file. You can omit the eslint-plugin- prefix:

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

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

{
    "rules": {
        "typescript/rule-name": "error"
    }
}

Supported Rules

• typescript/type-annotation-spacing — enforces one space after the colon and zero spaces before the colon of a type annotation.
• typescript/explicit-member-accessibility — enforces accessibility modifiers on class properties and methods. (member-access from TSLint)
• typescript/interface-name-prefix — enforces interface names are prefixed. (interface-name from TSLint)
• typescript/no-triple-slash-reference — enforces /// <reference /> is not used. (no-reference from TSLint)
• typescript/no-explicit-any — enforces the any type is not used. (no-any 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-namespace — disallows the use of custom TypeScript modules and namespaces.
• typescript/no-use-before-define — disallows the use of variables before they are defined.
• typescript/prefer-namespace-keyword — enforces the use of the keyword namespace over module to declare custom TypeScript modules. (no-internal-module from TSLint)
• typescript/no-type-alias — disallows the use of type aliases. (interface-over-type-literal from TSLint)
• typescript/member-ordering — enforces a standard member declaration order. (member-ordering from TSLint)
• typescript/no-unused-vars — prevents TypeScript-specific constructs from being erroneously flagged as unused
• typescript/adjacent-overload-signatures — enforces member overloads to be consecutive.
• typescript/no-parameter-properties - disallows parameter properties in class constructors. (no-parameter-properties from TSLint)
• typescript/class-name-casing - enforces PascalCased class and interface names. (class-name from TSLint)
• typescript/member-delimiter-style - enforces a member delimiter style in interfaces and type literals.
• typescript/no-empty-interface - disallows the declaration of empty interfaces. (no-empty-interface from TSLint)