@dozerg/no-new/dist/index.d.ts

Convert ES6 class constructor to normal function.

/**
 * Infer the function type of a class constructor.
 *
 * @example
 * ```
 *     class A {
 *       constructor(a: numbber, b?: string) {}
 *     }
 *
 *     type F = CtorToFun<typeof A>; // expect (a: numbber, b?: string) => A. Please note 'new' is removed.
 * ```
 */
type CtorToFun<T extends {
    new (...args: any[]): unknown;
}> = T extends {
    new (...args: infer A): infer B;
} ? (...args: A) => B : unknown;
/**
 * Return a function to construct a class object without 'new'.
 *
 * @example
 * ```
 *     class A {
 *       constructor(a: numbber, b: string) {}
 *     }
 *
 *     const AA = noNew(A);
 *     const a = AA(1, 'abc'); // same as new A(1, 'abc');
 * ```
 */
export default function noNew<T extends {
    new (...args: any[]): unknown;
}>(c: T): CtorToFun<T>;
export {};