TypeScript declare type vs type in .d.ts file All In One

declare type vs type

// declare type alias
declare type API = string;

//  type alias
type API = string;

demos

1. test.ts => test.d.ts

// declare type
declare type API = string;

function test(url: API){
  console.log(`✅ url =`, url);
  return url;
}

export default test;

2. test.ts => test.d.ts

// type
type API = string;

function test(url: API){
  console.log(`✅ url =`, url);
  return url;
}

export default test;

输入	输出	截图
declare type API = string;	declare type API = string;
type API = string;	type API = string;

(

标签：TypeScript,string,url,ts,API,test,type,declare
From： https://www.cnblogs.com/xgqfrms/p/17110621.html