javascript - 如何在一页上有多个时钟？

Question

我有一个有效的 javascript 代码，但我想在单个页面上有多个时钟。例如我需要3个时钟。我不知道如何在 getelementbyid 中拥有多个 id？

<div id="time">October 25, 2018 18:00 GMT+0300 (CDT)</div>



var timestamp = document.getElementById('time'),
t         = new Date(timestamp.innerHTML),
hours     = t.getHours(), 
min       = t.getMinutes() + '', 

months    = ['January', 'February', 'March', 'April', 'May', 'June', 'July', 'August', 'September', 'October', 'November', 'December'];

if(min.length == 1) min = '0' + min;
timestamp.innerHTML =  hours + ':' + min ;

Answer 1

这里的每个人都有正确的答案，我只是认为如果您看到一些代码来引用他们所说的内容，这会有所帮助

var timestamp1 = document.getElementById('time1')
getTime(timestamp1)
var timestamp2 = document.getElementById('time2')
getTime(timestamp2)
var timestamp3 = document.getElementById('time3')
getTime(timestamp3)

    function getTime(obj){
        t = new Date(obj.innerHTML),
        hours = t.getHours(), 
        min = t.getMinutes() + '', 
       
        months = ['January', 'February', 'March', 'April', 'May', 'June', 'July', 'August', 'September', 'October', 'November', 'December'];

        if(min.length == 1){
             min = '0' + min;
         }

        obj.innerHTML =  hours + ':' + min;
    }

<div id="time1">October 25, 2018 18:00 GMT+0300 (CDT)</div>
<div id="time2">October 25, 2018 18:00 GMT+0300 (CDT)</div>
<div id="time3">October 25, 2018 18:00 GMT+0300 (CDT)</div>

请告诉我这是否有帮助!谢谢!