--noUnusedLocals doesn't consider React to be "used" when using JSX files

[bartosz-k]

TypeScript Version: 2.1.0-dev.20160723

... because it complains that React is declared but never used. It doesn't understand JSX transformations apparently.

[yuit]

@Bartq could you provide some sample code that causes the problem?

[DanielRosenwasser]

He means --noUnusedLocals.

Minimal repro:

npm install @types/react

foo.ts

import React = require("react");

export const FooComponent = <div></div>

tsconfig.json

{
    "compilerOptions": {
        "module": "commonjs",
        "noUnusedLocals": true,
        "jsx": "preserve"
    }
}