sleep.js

//
// Self adjustable WINDOWS Sleep function for nodejs sync 
//
// If you use NODEJS for batch processes in windows, and you a tired on falling in the await/asycn nightmare, maybe this will help....

var Sleep = (function(i){
  var iSleepAdjust = 50;
  return function(i){
    let stime = performance.now();  
    require('child_process').execSync("echo WSH.Sleep("+(i-iSleepAdjust)+"); > ~$timer.tmp & cscript //e:jscript /Nologo ~$timer.tmp & del ~$timer.tmp");
    if (performance.now()-stime>=i) iSleepAdjust+=1;
    else iSleepAdjust-=1;
  }})();

/* OLD VERSION
//  Sleep function for nodejs sync needs using different strategies
function Sleep(i)
{
    if (i>=1000) {
        if (i%1000) Sleep(i % 1000);
        require('child_process').execSync("ping 127.0.0.1 -n "+Math.floor(i/1000+1)+" > nul");
    }
    else if (i>=200) { 
        require('child_process').execSync('powershell -command "Start-Sleep -Milliseconds '+Math.max(0, i-200)+'"');
    }
    else {
        let stime = performance.now();     // started time
        while (performance.now() - stime < i) require('child_process').execSync("ping 127.0.0.1 -n 1 > nul");
    }
}

*/