primeng/ts-helpers/index.d.ts

PrimeNG is an open source UI library for Angular featuring a rich set of 80+ components, a theme designer, various theme alternatives such as Material, Bootstrap, Tailwind, premium templates and professional support. In addition, it integrates with PrimeB

declare type Booleanish = boolean | 'true' | 'false';
declare type Numberish = number | string;
declare type Nullable<T = void> = T | null | undefined;
declare type VoidListener = VoidFunction | null | undefined;

export type { Booleanish, Nullable, Numberish, VoidListener };