Type Alias Mutable<T>

Mutable: { -readonly [P in keyof T]: T[P] }

Represents a writable version of a type by removing readonly from top-level properties.

Type Parameters

T
The type to transform.

Since

0.14.0

Example

interface Point {
    readonly x: number;
    readonly y: number;
}

function translate(p: Point, dx: number, dy: number): Point {
    const result = { ...p } as Mutable<Point>;
    result.x += dx; // OK — no longer readonly
    result.y += dy;
    return result;
}