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

You'll first need to installESLint:

$npm i eslint --save-dev

Next, installtypescript if you haven’t already:

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

Last, installeslint-plugin-typescript:

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

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

Addeslint-plugin-typescript/parser to theparser field andtypescript to the plugins section of your.eslintrc configuration file:

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

Note: The plugin provides its own version of thetypescript-eslint-parser viaeslint-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. Addplugin:typescript/recommended in extends:

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

Key: ✔️ = recommended, 🔧 = fixable