gongpeione

function allSets (arr) {
  const target = Math.pow(2, arr.length) - 1;
  const all = [];
  for (let i = 1; i <= target; i++) {
    all.push(Array.from({length: arr.length}, (v, index) => i & (1 << index) ? arr[index] : null).filter(v => arr.indexOf(v) > -1)); 
  }
  console.log(all);
}

function allSetsRec (arr, index, set, all) {

gongpeione

/**
*   1 打开 https://m.weibo.cn/beta 登陆你被炸的账号
*   2 打开浏览器控制台
**/

function delay (time) {
    return new Promise(r => {
        setTimeout(() => r(), time || 1000); // 延时 1s，可适当增加延长时间
    });
}

gongpeione

<style>
header, footer, main {
    display: block;
}

header {
    position: fixed;
    height: 50px;
    left: 0;
    right: 0;

gongpeione

// if you have a object like this
// {
//   tpl1: `Hello {name}, welcome to {location}`,
//   tpl2: `yo {bro}`,
// }
// and you wanna get a type like this
// {
//   name: string,
//   location: string,
//   bro: string