Convert a multidimensional javascript array to JSON?

Question

What is the best way of converting a multi-dimensional javascript array to JSON?

Answer 1

This will convert all combinations of arrays within objects and vice versa including function names:

function isArray(a){var g=a.constructor.toString();
   if(g.match(/function Array()/)){return true;}else{return false;}
}
function objtostring(o){var a,k,f,freg=[],txt; if(typeof o!='object'){return false;}
   if(isArray(o)){a={'t1':'[','t2':']','isarray':true}
   }else         {a={'t1':'{','t2':'}','isarray':false}}; txt=a.t1;
   for(k in o){
           if(!a.isarray)txt+="'"+k+"':";
           if(typeof o[k]=='string'){txt+="'"+o[k]+"',";
           }else if(typeof o[k]=='number'||typeof o[k]=='boolean'){txt+=o[k]+",";
           }else if(typeof o[k]=='function'){f=o[k].toString();freg=f.match(/^function\s+(\w+)\s*\(/);
               if(freg){txt+=freg[1]+",";}else{txt+=f+",";};
           }else if(typeof o[k]=='object'){txt+=objtostring(o[k])+",";
           }
   }return txt.substr(0,txt.length-1)+a.t2;
}