Why I can't make a jsFiddle of this working co

Question

My code works perfectly on my computer, on all my browsers (including ie), But I can't manage to make it work on jsFiddle.

The problem seems to be on:

    window.onload=function(){
        document.body.innerHTML+=brd+log;
    }

But I have tried both with and without the window.onload. I am totally clueless and I am starting to lose all hope

CSS (optional):

        *{margin:0;padding:0;}
        #brd{margin:15px auto;}
        #brd,#brd td,#log{border:1px solid #000;}
        #brd td{height:47px;width:45px;text-align:center;font-size:30px;}
        #brd span{font-size:12px;}
        #log{margin:15px auto;padding:20px;width:385px;max-height:150px;overflow:auto;background:#F0F0F0;color:#000;}

JavaScript:

        var i,sdk,rem,log,perf,brd,bxes=[["11","12","13","21","22","23","31","32","33"],["14","15","16","24","25","26","34","35","36"],["17","18","19","27","28","29","37","38","39"],["41","42","43","51","52","53","61","62","63"],["44","45","46","54","55","56","64","65","66"],["47","48","49","57","58","59","67","68","69"],["71","72","73","81","82","83","91","92","93"],["74","75","76","84","85","86","94","95","96"],["77","78","79","87","88","89","97","98","99"]];

        /*Array Find*/
        function arrFind(fnd,frm,bol){
            var ii,len,rtn=-1;

            for(ii=0,len=frm.length;ii<len;ii++){
                if(frm[ii]==fnd){
                    rtn=ii;
                    break;
                }
            }
            return bol?rtn>-1:rtn;
        }

        /*To RC*/
        function toRC(val){
            var ii,len,aa=[];

            val=val.split(",");

            for(ii=0,len=val.length;ii<len;ii++){
                aa.push(Math.ceil((parseInt(val[ii])+1)/9)+""+((parseInt(val[ii])%9)+1));
            }

            return aa.join(",");
        }

        /*To AV*/
        function toAV(rc){
            var ii,len,aa=[];

            rc=rc.split(",");

            for(ii=0,len=rc.length;ii<len;ii++){
                aa.push((((parseInt(rc[ii].charAt(0))-1)*9)+(parseInt(rc[ii].charAt(1))-1))+"");
            }

            return aa.join(",");
        }

        /*Get Box*/
        function getBox(av,bol){
            var ii,jj,len,ss,zz,aa=[];

            if(!bol){
                av=toRC(av);
            }

            av=av.split(",");

            for(ii=0,len=av.length;ii<len;ii++){
                ss=av[ii];
                for(jj=0;jj<9;jj++){
                    zz=window.bxes[jj];
                    if(arrFind(ss,zz,true)){
                        aa.push(zz);
                        break;
                    }
                }
            }

            return aa.join(",");
        }

        /*Get Row*/
        function getRow(av,bol){
            var ii,len,ss,aa=[];

            if(!bol){
                av=toRC(av);
            }

            av=av.split(",");

            for(ii=0,len=av.length;ii<len;ii++){
                ss=av[ii].charAt(0);
                aa.push(ss+"1",ss+"2",ss+"3",ss+"4",ss+"5",ss+"6",ss+"7",ss+"8",ss+"9");
            }

            return aa.join(",");
        }

        /*Get Column*/
        function getCol(av,bol){
            var ii,len,ss,aa=[];

            if(!bol){
                av=toRC(av);
            }

            av=av.split(",");

            for(ii=0,len=av.length;ii<len;ii++){
                ss=av[ii].charAt(1);
                aa.push("1"+ss,"2"+ss,"3"+ss,"4"+ss,"5"+ss,"6"+ss,"7"+ss,"8"+ss,"9"+ss);
            }

            return aa.join(",");
        }

        /*Get Value*/
        function getVal(av,bol){
            var ii,len,ss,aa=[];

            if(bol){
                av=toAV(av);
            }

            av=av.split(",");

            for(ii=0,len=av.length;ii<len;ii++){
                ss=window.sdk[parseInt(av[ii])];
                if(ss.length==1){
                    aa.push(ss);
                }
            }

            return aa.join(",");
        }

        /*Get Candidates*/
        function getCand(av,bol){
            var ii,len,ss,zz,aa=["1","2","3","4","5","6","7","8","9"];

            if(bol){
                av=toAV(av);
            }

            if(window.sdk[parseInt(av)].length==1){
                return [];
            }

            zz=getVal(getBox(av)+","+getRow(av)+","+getCol(av),true).split(",");

            for(ii=0,len=zz.length;ii<len;ii++){
                ss=arrFind(zz[ii],aa);
                if(ss>-1){
                    aa.splice(ss,1);
                }
            }

            return aa.join(",");
        }

        /*New Sudoku*/
        function newSudoku(str){
            var ii,len,ss;

            window.perf=new Date().getTime();
            window.log="";
            window.sdk=[];
            window.rem=[];

            for(ii=0,len=str.length;ii<len;ii++){
                ss=str.charAt(ii);
                if(ss!="0"){
                    window.log+=ss+" on "+toRC(ii+"")+"<br>";
                    writeNumber(ss,ii+"");//wn
                }else{
                    window.sdk[ii]=[];
                    window.rem.push(ii+"");
                }
            }
        }

        /*Write Number*/
        function writeNumber(val,av,bol){
            if(bol){
                av=toAV(av);
            }

            window.sdk[parseInt(av)]=[val];
            return delCand(val,av);
        }

        /*Delete Candidates*/
        function delCand(val,av,bol){
            var ii,jj,len,jen,ss,zz,cc,xx,xo,dd=[];

            if(bol){
                av=toAV(av);
            }

            zz=toRC(av);

            xx=new RegExp(","+zz+",","g");//below bol

            ss=toAV((getBox(av)+","+getRow(av)+","+getCol(av)).replace(xx,",").replace(zz+",","").replace(","+zz,"")).split(",");

            for(ii=0,len=ss.length;ii<len;ii++){
                cc=window.sdk[ss[ii]];
                if(!cc||cc.length<2){
                    continue;
                }
                zz=arrFind(val,cc);
                if(zz>-1){
                    window.sdk[parseInt(ss[ii])].splice(zz,1);
                    if(window.sdk[parseInt(ss[ii])].length==1){

                        window.log+=window.sdk[parseInt(ss[ii])][0]+" on "+toRC(ss[ii])+"<br>";
                        xo=delCand(window.sdk[parseInt(ss[ii])][0],ss[ii]);//wn

                        jen=xo.length;
                        if(jen>0){
                            for(jj=0;jj<jen;jj++){
                                dd.push(xo[jj]);
                            }
                        }
                        dd.push(ss[ii]);
                    }
                }
            }
            return dd;
        }

        /*Delete Remaining*/
        function delRem(arr){
            var ii,len,ss;

            for(ii=0,len=arr.length;ii<len;ii++){
                ss=arrFind(arr[ii],window.rem);
                if(ss>-1){
                    window.rem.splice(ss,1);
                }
            }
        }

        /*Solve Sudoku*/
        function solSudoku(){
            var ii,jj,ll,yy,len,jen,ss,zz,cc,dd,xo;

            for(ll=0;ll<1;ll++){

                dd=[];
                for(ii=0,len=window.rem.length;ii<len;ii++){

                    zz=window.sdk[parseInt(window.rem[ii])];

                    if(zz.length==0){
                        ss=getCand(window.rem[ii]).split(",");

                        if(ss.length==1&&ss[0]!=""){

                            window.log+=ss[0]+" on "+toRC(window.rem[ii])+"<br>";
                            xo=writeNumber(ss[0],window.rem[ii]);//wn

                            jen=xo.length;
                            if(jen>0){
                                for(yy=0;yy<jen;yy++){
                                    dd.push(xo[yy]);
                                }
                            }
                            dd.push(window.rem[ii]);

                            ll=-1;
                        }else{
                            if(ss.length>1){
                                window.sdk[parseInt(window.rem[ii])]=ss;
                            }
                        }
                    }else if(zz.length==1){
                        alert("solSudoku warning");
                        dd.push(window.rem[ii]);
                    }
                }
                delRem(dd);
            }
            if(window.rem.length!=0){
                //failed to solve by simple solving
                //start advanced solving
            }
        }

        //============================================================================

        newSudoku("032060007000008290000509000000300016800000002610002000000405000045800000700010530");

        solSudoku();
        //000124039007093056390000200040708000008050400000201060005000078270980300980517000
        //032060007000008290000509000000300016800000002610002000000405000045800000700010530


        //delCand("5","55",true);

        //alert("["+sdk.join("][")+"]");

        log+="--- Time: "+(new Date().getTime()-perf)+" milliseconds ---";

        brd="<table id=\"brd\" cellpadding=\"0\" cellspacing=\"0\"><tbody><tr>";

        for(i=0;i<sdk.length;i++){
            if(i%9==0){
                if(i!=0&&i!=80){
                    brd+="</tr><tr>";
                }
            }
            if(sdk[i].length==0){
                brd+="<td>&nbsp;</td>";
            }
            if(sdk[i].length==1){
                brd+="<td>"+sdk[i]+"</td>";
            }
            if(sdk[i].length>1){
                brd+="<td><span>"+sdk[i].join(" ")+"</span></td>";
            }
        }

        brd+="</tr></tbody></table>";
        log="<div id=\"log\">"+log+"</div>";

        window.onload=function(){
            document.body.innerHTML+=brd+log;
        }

Answer 1

It works ok, see here

PS: You should select the no wrap (head) option.

Answer 2

If you view the source of a jsFiddle you will see that all the javascript is already wrapped in the window.onload function.

After the outer window.onload function is called, the inner function won't execute because the document is already loaded:

window.onload=function(){
    window.onload=function(){
        // this code will never get executed.
    }
}