除非主体已被消耗,否则套接字/文件描述符将保持打开状态

import fetch from 'node-fetch';

const urls = [ 'https://i.dailymail.co.uk/i/pix/2016/06/25/02/35A4954F00000578-0-image-a-13_1466819022937.jpg', 'https://i.dailymail.co.uk/i/pix/2016/02/05/17/30EAB51200000578-0-image-m-5_1454695002729.jpg', 'https://i.dailymail.co.uk/i/pix/2016/09/02/14/37D5E61C00000578-0-image-a-8_1472824415895.jpg', 'https://i.dailymail.co.uk/i/pix/2017/10/24/19/45A4723600000578-0-image-a-2_1508868932466.jpg', 'https://i.dailymail.co.uk/i/pix/2015/10/25/01/2DBFBEEA00000578-0-image-m-11_1445735767824.jpg', 'https://i.dailymail.co.uk/i/newpix/2018/09/12/21/50189AEE00000578-0-image-a-16_1536785559682.jpg', 'https://i.dailymail.co.uk/i/newpix/2018/06/14/11/4D38883100000578-0-image-a-1_1528971515562.jpg', 'https://i.dailymail.co.uk/i/newpix/2018/09/10/15/4FFCB43B00000578-0-image-a-1_1536591220607.jpg', 'https://i.dailymail.co.uk/i/newpix/2018/05/08/05/4BF69E0000000578-0-image-m-103_1525754036269.jpg', 'https://i.dailymail.co.uk/1/2018/06/14/11/2018/06/14/10/video-3293220-219_636x358.jpg', 'https://i.dailymail.co.uk/1s/2022/09/28/00/video-62865615-982_636x358.jpg', 'https://i.dailymail.co.uk/1s/2022/10/05/16/63142239-0-image-a-7_1664982798552.jpg', 'https://i.dailymail.co.uk/1s/2022/10/05/15/63140431-0-image-m-34_1664980059636.jpg', 'https://i.dailymail.co.uk/1s/2022/10/05/12/63134711-0-image-m-25_1664969549665.jpg', 'https://i.dailymail.co.uk/1s/2022/10/05/10/63131471-0-image-a-7_1664963489500.jpg', 'https://i.dailymail.co.uk/1s/2022/09/30/17/video-62976713-405_636x358.jpg', 'https://i.dailymail.co.uk/1s/2022/09/30/22/video-62986031-384_636x358.jpg', 'https://i.dailymail.co.uk/1s/2022/10/01/07/62994677-0-image-m-4_1664607016900.jpg', 'https://i.dailymail.co.uk/1s/2022/10/07/22/video-63243097-225_636x358.jpg', 'https://i.dailymail.co.uk/1s/2022/09/25/14/62780539-0-image-a-19_1664113310966.jpg', 'https://i.dailymail.co.uk/1s/2022/09/25/13/video-62779795-794_636x358.jpg', 'https://i.dailymail.co.uk/1s/2022/11/11/21/64461065-0-image-m-4_1668203772838.jpg', 'https://i.dailymail.co.uk/1s/2022/11/14/04/64515861-0-image-a-13_1668398628989.jpg', 'https://i.dailymail.co.uk/1s/2022/10/25/21/video-63844227-187_636x358.jpg', 'https://i.dailymail.co.uk/1s/2022/10/25/17/video-63836581-805_636x358.jpg' ];

const resourceExists = async (url) => { try { const response = await fetch(url);

return response.ok;

} catch (_) { return false; } };

for (const url of urls) { await resourceExists(url); }

console.log('Done');

// give some