当计算机从睡眠模式重新启动时如何重新启动Web Worker？

Question

我有一个简单的Webworker，它使用setInterval保留了时区的当前时间

setInterval(() => {
        userTimezoneTimestamp = userTimezoneTimestamp + 1000
        postMessage(userTimezoneTimestamp);
    }, 1000);

在我将机器置于睡眠模式之前，它工作正常。当我从睡眠模式重新启动计算机时，我从该工作人员那里得到的时间更长。仅当机器从睡眠模式启动时，如何才能重新启动Web Worker？

Answer 1

( async () => {

  const offset_from_API = await getOffsetFromAPI();
  const time_received = Date.now(); // for even more granularity we could use performance.now() 
  
  const getUpToDateOffset = () => {
    return offset_from_API + (Date.now() - time_received);
  };
  
  // to compare we will also use an incrementer
  let incremented = offset_from_API;
  setInterval( () => {
    incremented += 1000;
    console.clear();
    console.log( 'incremented', incremented.toLocaleString( 'en-US' ) );
    console.log( 'difference ', getUpToDateOffset().toLocaleString( 'en-US' ) );
  }, 1000 );
  
} )();

function getOffsetFromAPI() { return 1234567; }