手写实现 sleep 函数

[lgwebdream]

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[GolderBrother]

function sleep(fn, delay, ...args) {
  return new Promise((resolve, reject) => {
    setTimeout(() => {
      try {
        const result = typeof fn === 'function' && fn.apply(this, args);
        resolve(result);
      } catch (error) {
        reject(error);
      }
    }, delay);
  });
}

[gaohan1994]

const sleep = (wait = 1000) => {
  return new Promise(resolve => {
    const timer = setTimeout(() => {
      resolve();
      clearTimeout(timer);
    }, wait);
  });
};

[Alicca-miao]

//这算sleep吗
let obj={
    apple:2,
    say: function(param) {
        setTimeout(() => {
            console.log(`等${param}`)
        }, param * 1000)
        return this
    }
}

  console.log(obj.say(2).apple)