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编辑当前文件:/home/qrafawbu/www/kwesioben.com/assets/js/clock.js

// gets clock hands and puts them into constants
const HOURHAND = document.querySelector("#hour");
const MINUTEHAND = document.querySelector("#minute");
const SECONDHAND = document.querySelector("#second");

// gets the current time and adds hours / mins / secs to individual let varriables
var date = new Date();
let hr = date.getHours();
let min = date.getMinutes();
let sec = date.getSeconds();

// converts current time into degrees of the 360 degree clock
// the calculation on hr & min incriments the clock smootly instead of jumping from minuite to minuite or hour to hour it is  percentages of a minuite / hour respectivly
let hrPosition = (hr*360/12)+(min*(360/60)/12);
let minPosition = (min*360/60)+(sec*(360/60)/60);
let secPosition = sec*360/60;

// function that sets clock to current time and adds a second to it every time it is called
function runClock(){
  
  // adds degrees in an hour divide by seconds in an hour to previous time
  hrPosition += (30/3600);
  
  // adds degrees in a minuite divide by seconds in an minuite to previous time
  minPosition += (6/60);
  
  // adds degrees in a second to previous time
  secPosition += 6;
   
  // position clock hands to degrees values calculated above using transfrom rotate
  HOURHAND.style.transform = "rotate(" + hrPosition + "deg)";
  MINUTEHAND.style.transform = "rotate(" + minPosition + "deg)";
  SECONDHAND.style.transform = "rotate(" + secPosition + "deg)";
  
}

// intival that automates the clock by calling the runClock function every second
var interval = setInterval(runClock, 1000);