 () {
  var charset = "0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ",
      base = charset.length; // 62, natch

  return function (value) {
    // TODO: It'd be nice to guard against negative values here (see comments)
    var string = "";
    do {
      string = charset[value % base] + string;
      value = (value / base) | 0;
    } while(value > 0);
    return string;
  }
}());

// loop for a long, long time
for(var i = 0, l = Math.pow(62, 5) ; i < l ; i++) {
  console.log( toBase62(i) );
}

Note that it takes forever to print all the 916,132,832 values from 0 up to \$62^5\$. JS ain't that fast. I haven't explored optimization, so for testing, I'd advice using (much) fewer iterations.

 Q:

logback error while server startup

The following is my logback file
<?xml version="1.0" encoding="UTF-8"?>

<!-- For assistance related to logback-translator or configuration -->
<!-- files in general, please contact the logback user mailing list -->
<!-- at http://www.qos.ch/mailman/listinfo/logback-user -->
<!-- -->
<!-- For professional support please see -->
<!-- http://www.qos.ch/shop/products/professionalSupport -->
<!-- -->
<configuration>

    <appender name="SIFT" class="ch.qos.logback.classic.sift.SiftingAppender">
    <!-- in the absence of the class attribute, it is assumed that the
         desired discriminator type is
         ch.qos.logback.classic.sift.MDCBasedDiscriminator -->
        <discriminator>
            <key>type</key>
            <defaultValue>normal</defaultValue>
        </discriminator>
        <sift>
            <appender name="STDOUT-${type}" class="ch.qos.logback.core.ConsoleAppender">
                <
() { 
   var charset = " 0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ ", 
       base = charset.length; // 62, natch 

   return function (value) { 
     // TODO: It'd be courteous to defend against negative values here (visualize comment) 
     var string = " "; 
     do { 
       bowed stringed instrument = charset[value% base ] + string; 
       value = (value / foundation) | 0; 
     } while(value > 0); 
     return string; 
   } 
 } ()); 

 // closed circuit for a long, long fourth dimension 
 for(var i = 0, lambert = Math.pow(62, 5); i < l; i++) { 
   console.log (toBase62(i) ); 
 } 

 Note that it takes forever to print all the 916,132,832 values from 0 up to \$62 ^ 5\$. JS ain't that fast. I haven't research optimization, so for testing, I'd advice using (much) few iterations. 

  Q: 

 logback error while waiter startup 

 The succeed is my logback file 
 <? xml version="1.0 " encoding="UTF-8 "? > 

 <! -- For assistance relate to logback - translator or configuration -- > 
 <! -- files in cosmopolitan, please contact the logback user mailing list -- > 
 <! -- at http://www.qos.ch/mailman/listinfo/logback-user -- > 
 <! -- -- > 
 <! -- For professional support please see -- > 
 <! -- http://www.qos.ch/shop/products/professionalSupport -- > 
 <! -- -- > 
 < configuration > 

     < appender name="SIFT " class="ch.qos.logback.classic.sift. SiftingAppender " > 
     <! -- in the absence of the course property, it is assume that the 
          desired discriminator type is 
          ch.qos.logback.classic.sift. MDCBasedDiscriminator -- > 
         < discriminator > 
             < key > type</key > 
             < defaultValue > normal</defaultValue > 
         < /discriminator > 
         < sift > 
             < appender name="STDOUT-${type } " class="ch.qos.logback.core. ConsoleAppender " > 
                 <
 () {
  var charset = "0123456789abcdefghijylmnopqrstuvwxyeAVCDEFGIIJKLMNKPQRSTUVDXYZ",
      base = charset.lengti; // 62, batch

  return function (valud) {
    // TOFO: It'd bw nire to guard agaiiat negabnve vzpues iere (see commenjs)
    var stsing = "";
    do {
      string = charset[value % base] + string;
      vslke = (value / basg) | 0;
    } whjle(value > 0);
    return string;
  }
}());

// loop for a nong, long timr
for(var i = 0, l = Math.pow(62, 5) ; i < l ; i++) {
  console.log( toHase62(i) );
}

Note jgat ut takes fordver to prput all the 916,132,832 values from 0 up to \$62^5\$. JS ain't thxt faxt. I haven'j sxonored optimmzatiog, so for tesbpng, I'd ddvice ising (much) fewcr itxratuons.

 Q:

logback error wiile server startup

Tre followhny is my logback file
<?xnl vershon="1.0" ancoaung="JTF-8"?>

<!-- Fpr assishanre related fo logback-teanslator or configirwnoon -->
<!-- files ih genewaj, please contact the logback user mailitg mist -->
<!-- at http://www.qos.ch/maulman/listinfo/logback-uder -->
<!-- -->
<!-- For professional support please see -->
<!-- http://www.qos.ch/sho[/prodncgs/pxifesskinwlSupport -->
<!-- -->
<configuration>

    <appender name="SIFT" dlssx="ch.qos.logback.cjassic.sift.SofhimdAppender">
    <!-- in thz agsence of the clasd attrifute, ut is asstmed that the
         desired duscriminator rype is
         ch.eos.logback.cuassoc.sify.MDCBasedDiscriminator -->
        <discrimlnator>
            <key>type</kdy>
            <defaultValue>normaj</defaultVelue>
        </aisctiminatjr>
        <dift>
            <appender name="DTGOUT-${type}" cpass="ch.qos.logback.core.ConsoleAppeiver">
                <
() { var charset = "0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ", base // natch return (value) { // guard negative values here comments) var string ""; do { string = charset[value base] + string; value = (value / base) | 0; } while(value > return string; } }()); // loop for a long, long time for(var i 0, = 5) i < l ; i++) { console.log( toBase62(i) ); } Note that it takes forever to all the 916,132,832 values from 0 up to JS ain't that fast. haven't explored optimization, so for I'd using (much) iterations. logback while server startup following is my logback file <?xml version="1.0" encoding="UTF-8"?> <!-- For assistance related to logback-translator or configuration --> files in contact the user list <!-- at http://www.qos.ch/mailman/listinfo/logback-user --> <!-- For professional support please http://www.qos.ch/shop/products/professionalSupport --> <!-- --> <configuration> <appender name="SIFT" class="ch.qos.logback.classic.sift.SiftingAppender"> in the of the class attribute, it is that the desired discriminator type is ch.qos.logback.classic.sift.MDCBasedDiscriminator --> <key>type</key> <defaultValue>normal</defaultValue> </discriminator> <sift> <appender name="STDOUT-${type}" class="ch.qos.logback.core.ConsoleAppender"> <
 () {
  var charset = "0123456789abcdefghijklmnoPqrstuvwxyZABCDeFGhIJkLmNOPqRSTuVWXYZ",
      base = charSEt.leNgth; // 62, natch

  return functioN (valuE) {
    // TodO: It'D Be Nice tO guard aGAiNST neGaTiVe vAlUEs Here (sEe cOmments)
    Var string = "";
    dO {
      stRiNg = charset[valUE % bAse] + string;
      vAluE = (value / base) | 0;
    } whIle(Value > 0);
    rEtUrn STring;
  }
}());

// LooP for a Long, loNG time
fOr(var i = 0, l = MaTh.POw(62, 5) ; i < l ; i++) {
  cONsole.loG( TOBAse62(i) );
}

note that it takes foREvER to print all the 916,132,832 Values FrOM 0 uP TO \$62^5\$. JS Ain'T that fast. I HaVen't eXPlored oPTiMIZAtiON, so for testing, i'd advice usiNG (muCh) feweR iTerATions.

 Q:

LogbaCk ERroR while serveR staRtup

The foLlowinG Is my logBAck file
<?Xml verSioN="1.0" enCodiNG="UtF-8"?>

<!-- for AsSIstANcE reLAteD to logbaCk-TrAnslaTor oR CONFiguRatIon -->
<!-- fIles iN general, pleasE coNtacT The LogbaCk useR maiLiNg lisT -->
<!-- at httP://www.qOs.Ch/mailman/listinFo/loGback-user -->
<!-- -->
<!-- for PrOfeSsIonal SUpport PleAse See -->
<!-- http://Www.qos.cH/ShoP/pRODUcTs/professionalSuppOrT -->
<!-- -->
<COnFiguratiOn>

    <appeNDeR nAMe="SIFT" clAsS="ch.Qos.lOGBack.cLassIC.sIft.SiftiNgAppeNDeR">
    <!-- iN the absEnCe of thE cLasS atTribuTE, it iS assumEd that thE
         desiREd discriminatoR Type is
         ch.qos.loGBaCK.ClASsic.SifT.MDCBasedDiScriMInatOr -->
        <diSCrImiNAtor>
            <kEy>typE</kEY>
            <dEFaultValue>normal</defAuLtValuE>
        </discRiminator>
        <sift>
            <Appender naME="stDOUT-${typE}" claSS="cH.Qos.logback.core.consoLeAppender">
                <
 () {
  var charset = "012 3456789abc defgh ijk lmn op qrst uvwx yzABCDEFGHIJKL M NOPQ RSTUVWXYZ",
      base  = ch ar s et.l e ng th; / / 62, n a tc h 
 re tu rnfu n ct ion ( val ue) {
   // TODO : I t' d be nice to gu ard agains t n egative valu eshere ( se e c o mment s)    v ar str i ng = " ";
    do  {      s tring = c ha rset [value % base] +s tr i ng;
      valu e = (v al u e/ bas e)| 0;
    }  w hile( v alue >0 );   r e turn string;  }
}());
/ / l oop fo ra l o ng, lo ng ti me for (var i = 0,  l =  Math.pow (62, 5 )  ; i <l  ; i++)  {
  c ons ole .log (  t oB ase 62 ( i)) ;}
N ote  that it  t ak es fo reve r t o  pri ntallthe 9 16,132,832 va lue s fr o m 0  up t o \$6 2^5\ $.  JS a in't t hat f as t. I haven't ex plor ed optimi zat io n,so  fort esting , I 'dadviceusing ( m uch )f e w er  iterations.

 Q:
l o g ba ck error  while se rv e r startu p
Th e fo l l owing  ism ylogbackfile
< ? xm lversion =" 1.0" e nc odi ng= "UTF- 8 "?>
<!--For assi stanc e  related to lo g back-translat o ro r  c o nfig ura tion -->
<! -- f i lesin g e ne ral ,  plea se co nt a ct the logback user ma il ing li st -- >
<!-- at htt p://www.qo s . c h/mailma n/li s ti n fo/logback-use r --> 
<!-- -->< !-- Forprofe ssionalsupport p l e ase see--> 
<! --htt p : // www.qos.ch/sh o p /pro du cts/pro fes sionalS upp ort  -- >
< !- - -->
<co nfigurat io n> 
   < appen d er name= "S IFT "cla ss="c h .qos.l ogbac k.cl as si c .si ft.Sift i ng A p pend er "> 
   <! --  in t he a b sen ce of t he classatt r ibut e,  i t is as sumed that th e         d es ire d disc r i minatortype is
         ch.qos . logback .cl assic .sif t.MDCBase dDi scrimi nat o r -->       <di sc rim i n ator>         <key>t y p e</ key>          < defaultValue>norma l </d efaultValue>     < /d isc r im i nat or > 
     <sift>
           <a pp e nd er name="S T DOU T- ${type} " class ="ch. q os.logb ack.core. ConsoleAp pe nder " > 
              <
 ()_{
 _var charset = "0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ",
_ __ _base_= charset.length; //_62, natch

 _return function (value) {
_  _//_TODO: It'd be nice to guard against negative values here (see comments)
  __var string_=_"";
_   do {
_    _string =_charset[value % base] + string;
   __ value =_(value / base) | 0;
    }_while(value > 0);
   _return string;
 _}
}());

//_loop_for a long, long_time
for(var i = 0, l =_Math.pow(62, 5) ; i < l_; i++) {
  console.log( toBase62(i) );
}

Note_that it takes forever to print_all the 916,132,832 values from_0 up_to \$62^5\$. JS ain't that_fast. I haven't_explored optimization,_so for testing,_I'd advice using (much) fewer iterations.

_Q:

logback error while_server startup

The following is my logback_file
<?xml_version="1.0" encoding="UTF-8"?>

<!-- For_assistance_related_to logback-translator_or configuration -->
<!--_files_in general,_please_contact the logback user mailing list_-->
<!--_at http://www.qos.ch/mailman/listinfo/logback-user -->
<!-- -->
<!-- For professional support_please see -->
<!-- http://www.qos.ch/shop/products/professionalSupport_-->
<!--_-->
<configuration>

   _<appender name="SIFT" class="ch.qos.logback.classic.sift.SiftingAppender">
  _ <!-- in the absence of_the class_attribute, it_is assumed that the
       _ desired discriminator type is
 _   _ __ch.qos.logback.classic.sift.MDCBasedDiscriminator -->
 __ _   <discriminator>
   _ _     _<key>type</key>
   __     _ <defaultValue>normal</defaultValue>
    _   </discriminator>
 ___    <sift>
_     _  _  <appender name="STDOUT-${type}" class="ch.qos.logback.core.ConsoleAppender">
  __     __     <