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index-START.html
executable file
·209 lines (208 loc) · 3.76 KB
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index-START.html
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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Videos</title>
</head>
<body>
<ul class="videos">
<li data-time="5:43">
Video 1
</li>
<li data-time="2:33">
Video 2
</li>
<li data-time="3:45">
Video 3
</li>
<li data-time="0:47">
Video 4
</li>
<li data-time="5:21">
Video 5
</li>
<li data-time="6:56">
Video 6
</li>
<li data-time="3:46">
Video 7
</li>
<li data-time="5:25">
Video 8
</li>
<li data-time="3:14">
Video 9
</li>
<li data-time="3:31">
Video 10
</li>
<li data-time="5:59">
Video 11
</li>
<li data-time="3:07">
Video 12
</li>
<li data-time="11:29">
Video 13
</li>
<li data-time="8:57">
Video 14
</li>
<li data-time="5:49">
Video 15
</li>
<li data-time="5:52">
Video 16
</li>
<li data-time="5:50">
Video 17
</li>
<li data-time="9:13">
Video 18
</li>
<li data-time="11:51">
Video 19
</li>
<li data-time="7:58">
Video 20
</li>
<li data-time="4:40">
Video 21
</li>
<li data-time="4:45">
Video 22
</li>
<li data-time="6:46">
Video 23
</li>
<li data-time="7:24">
Video 24
</li>
<li data-time="7:12">
Video 25
</li>
<li data-time="5:23">
Video 26
</li>
<li data-time="3:34">
Video 27
</li>
<li data-time="8:22">
Video 28
</li>
<li data-time="5:17">
Video 29
</li>
<li data-time="3:10">
Video 30
</li>
<li data-time="4:43">
Video 31
</li>
<li data-time="19:43">
Video 32
</li>
<li data-time="0:47">
Video 33
</li>
<li data-time="0:47">
Video 34
</li>
<li data-time="3:14">
Video 35
</li>
<li data-time="3:59">
Video 36
</li>
<li data-time="2:43">
Video 37
</li>
<li data-time="4:17">
Video 38
</li>
<li data-time="6:56">
Video 39
</li>
<li data-time="3:05">
Video 40
</li>
<li data-time="2:06">
Video 41
</li>
<li data-time="1:59">
Video 42
</li>
<li data-time="1:49">
Video 43
</li>
<li data-time="3:36">
Video 44
</li>
<li data-time="7:10">
Video 45
</li>
<li data-time="3:44">
Video 46
</li>
<li data-time="3:44">
Video 47
</li>
<li data-time="4:36">
Video 48
</li>
<li data-time="3:16">
Video 49
</li>
<li data-time="1:10">
Video 50
</li>
<li data-time="6:10">
Video 51
</li>
<li data-time="2:14">
Video 52
</li>
<li data-time="3:44">
Video 53
</li>
<li data-time="5:05">
Video 54
</li>
<li data-time="6:03">
Video 55
</li>
<li data-time="12:39">
Video 56
</li>
<li data-time="1:56">
Video 57
</li>
<li data-time="4:04">
Video 58
</li>
</ul>
<script>
const timeNodes = document.querySelectorAll('[data-time]');
const totalSeconds = [...timeNodes]
.map(node => toSecond(node.dataset.time))
.reduce((total,videoSec) => total + videoSec);
function toSecond(time) {
const [mins, secs] = time.split(':').map(str => parseFloat(str));
// const [mins, seconds] = time.split(':').map(parseFloat); //也可以寫成這樣
return mins * 60 + secs;
}
function toHMS(secondsLeft){
const hrs = Math.floor(secondsLeft / 3600);
const mins = Math.floor(secondsLeft % 3600 / 60);
const secs = secondsLeft % 3600 % 60;
return {
hr: hrs,
min: mins,
sec: secs
}
}
const totalTime = toHMS(totalSeconds);
console.log(totalTime);
</script>
</body>
</html>