时间转换为毫秒错误

Question

我昨天试过了，但我得到了下面的代码

let str = document.querySelector("#content_value > table:nth-child(2) > tbody > tr > td:nth-child(2) > table:nth-child(11) > tbody > tr:nth-child(10) > td:nth-child(2) > span").textContent;
let timeParts = str.match(/\b(\d\d?):(\d\d?)(?::(\d\d?))?\b/) || [0,0,0];
console.log("Converted to array:", timeParts);
let [, h, m, s] = timeParts.map(str => +str || 0);
let cas = ((h * 60 + m) * 60 + s) * 1000;
console.log(cas);

不幸的是，代码不能将秒转换为毫秒，有人会帮忙吗？

jsfiddle.

是3个时间(文本)和时间

time
17:45
0:01:08
0:00:10

小时、分钟、秒，这三个值需要转换为毫秒

此代码适用于小时和分钟，但不适用于秒

在此处输入图像描述

在此处输入图像描述

2：https://i.stack.imgur.com/nDdYh.png这项工作3：https://i.stack.imgur.com/8FTuJ.png秒不工作(18秒是18000+1min 60000 (78000))脚本https://i.stack.imgur.com/nDdYh.png 1000

<span class="inactive"><span>Suroviny jsou k dispozici za <span class="">0:00:10</span></span><span

​

function toms(str) {
  let timeParts = str.match(/\b(\d\d?):(\d\d?)(?::(\d\d?))?\b/) || [0,0,0,0];
  let [, h, m, s] = timeParts.map(str => +str || 0);
  let cas = ((h * 60 + m) * 60 + s) * 1000;
  return cas;
}

["1:02", "Suroviny jsou k dispozici za 0:01:35Suroviny jsou k dispozici.", "None"].forEach(str => console.log(str, toms(str)))

​

Answer 1

错误是您的正则表达式不匹配，并且您获得了默认的[0,0,0]数组，但是当赋值给h、m和s时，您丢弃了第一个元素，并在s中获得了undefined。

​

function toms(str) {
  let timeParts = str.match(/\b(\d\d?):(\d\d?)(?::(\d\d?))?/) || [0,0,0,0];
  let [, h, m, s] = timeParts.map(str => +str || 0);
  let cas = ((h * 60 + m) * 60 + s) * 1000;
  return cas;
}

["1:02", "1:02:03", "Suroviny jsou k dispozici za 0:01:35Suroviny jsou k dispozici.", "None"].forEach(str => console.log(str, toms(str)))

​