ts-type

README

add some typescript type and re-export some build-in typescript type

see index.d.ts

install

npm install ts-type

demo

• demo.ts ／ demo.d.ts

ITSOverwrite

export interface A1
{
	s: string
}

export type A2 = ITSOverwrite<A1, {
	s: number,
}>
export declare let a2: A2;
// a2.s is number

ITSOverwriteReturnType

import { ITSOverwriteReturnType } from '..';

declare function f(a: number): number

declare let c: ITSOverwriteReturnType<typeof f, string>;
// c is (a: number) => string
// c(1).toUpperCase()

Promise / Bluebird / PromiseLike

npm install @types/bluebird ts-type

export declare function p1(a: number): Promise<number>

export declare let p1_v: ITSUnpackedReturnType<typeof p1>;

p1_v.toFixed()

export declare let p2: ITSWrapFunctionPromise<typeof p1>;
export declare let p3: ITSWrapFunctionBluebird<typeof p2>;
export declare let p4: ITSWrapFunctionBluebird<typeof p1>;

p2(1).then(v => v.toFixed())
p3(1).then(v => v.toFixed())
p4(1).then(v => v.toFixed())

other

• callable-instance2 - create an ES6 class that is callable as a function

docs

• http://www.typescriptlang.org/docs/handbook/release-notes/typescript-3-1.html
• https://www.tslang.cn/docs/release-notes/typescript-3.1.html#toc-whats-new