Type definition for 'getFormNames' selector is incorrect

[TAGC]

Are you submitting a bug report or a feature request?

Bug report.

What is the current behavior?

Trying to use getFormState as described in the docs results in Typescript compiler error TS2346 ("Supplied parameters do not match any signature of call target"):

const state = yield select();
const formNames: string[] = getFormNames()(state);

Suppressing these errors and running this code anyway works as expected.

What is the expected behavior?

The Typescript compiler should flag up no warnings or errors for the code presented above.

What's your environment?

• Redux Form 6.7.0
• Windows 7 64-bit
• Typescript 2.3.2
• Electron 1.6.8
  • Node: >=7.4.0
  • Chromium: >=56.0.2924.87
  • V8: >=5.6.326.50

Other information

The source of this error is this incorrect type definition at @types/redux-form/lib/selectors.d.ts:

/**
 * Gets the names of all the forms currently managed by Redux-Form.
 *
 * The reason that this is a function that returns a function is twofold:
 *   1. symmetry with the other selectors
 *   2. to allow for the getFormState parameter described at the top of this page.
 *
 * If you are using ImmutableJS, it will return a List.
 */
export const getFormNames: <State>(state: State) => string[];

This issue may relate to #2650.

[gustavohenke]

@types/redux-form is maintained by DefinitelyTyped, so unfortunately, there's nothing we can do at the moment.

P.S.: It would be amazing to have it maintained on our side (see #1211), because TypeScript is the most well-adopted typing variation of JS.

[lock]

This thread has been automatically locked since there has not been any recent activity after it was closed. Please open a new issue for related bugs.