Type Alias EmptyObject

EmptyObject: {
[emptyObjectSymbol]?: never;
}

Represents a strictly empty plain object, the {} value.

When you annotate something as the type {}, it can be anything except null and undefined. This means that you cannot use {} to represent an empty plain object (read more).

Example

import type {EmptyObject} from 'type-fest';

// The following illustrates the problem with `{}`.
const foo1: {} = {}; // Pass
const foo2: {} = []; // Pass
const foo3: {} = 42; // Pass
const foo4: {} = {a: 1}; // Pass

// With `EmptyObject` only the first case is valid.
const bar1: EmptyObject = {}; // Pass
const bar2: EmptyObject = 42; // Fail
const bar3: EmptyObject = []; // Fail
const bar4: EmptyObject = {a: 1}; // Fail

Unfortunately, Record<string, never>, Record<keyof any, never> and Record<never, never> do not work. See #395.

Type Alias EmptyObject

Example

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