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JavaScript var_dump (Mark 2)

Same as var_dump for PHP, but for JavaScript. Useful if you do not have Firebug.

A typical useage:

document.write(var_dump(ANY-JS-VAR,'html'));

     function var_dump(data,addwhitespace,safety,level) {
        var rtrn = '';
        var dt,it,spaces = '';
        if(!level) {level = 1;}
        for(var i=0; i<level; i++) {
           spaces += '   ';
        }//end for i<level
        if(typeof(data) != 'object') {
           dt = data;
           if(typeof(data) == 'string') {
              if(addwhitespace == 'html') {
                 dt = dt.replace(/&/g,'&amp;');
                 dt = dt.replace(/>/g,'&gt;');
                 dt = dt.replace(/</g,'&lt;');
              }//end if addwhitespace == html
              dt = dt.replace(/\"/g,'\"');
              dt = '"' + dt + '"';
           }//end if typeof == string
           if(typeof(data) == 'function' && addwhitespace) {
              dt = new String(dt).replace(/\n/g,"\n"+spaces);
              if(addwhitespace == 'html') {
                 dt = dt.replace(/&/g,'&amp;');
                 dt = dt.replace(/>/g,'&gt;');
                 dt = dt.replace(/</g,'&lt;');
              }//end if addwhitespace == html
           }//end if typeof == function
           if(typeof(data) == 'undefined') {
              dt = 'undefined';
           }//end if typeof == undefined
           if(addwhitespace == 'html') {
              if(typeof(dt) != 'string') {
                 dt = new String(dt);
              }//end typeof != string
              dt = dt.replace(/ /g,"&nbsp;").replace(/\n/g,"<br>");
           }//end if addwhitespace == html
           return dt;
        }//end if typeof != object && != array
        for (var x in data) {
           if(safety && (level > safety)) {
              dt = '*RECURSION*';
           } else {
              try {
                 dt = var_dump(data[x],addwhitespace,safety,level+1);
              } catch (e) {continue;}
           }//end if-else level > safety
           it = var_dump(x,addwhitespace,safety,level+1);
           rtrn += it + ':' + dt + ',';
           if(addwhitespace) {
              rtrn += '\n'+spaces;
           }//end if addwhitespace
        }//end for...in
        if(addwhitespace) {
           rtrn = '{\n' + spaces + rtrn.substr(0,rtrn.length-(2+(level*3))) + '\n' + spaces.substr(0,spaces.length-3) + '}';
        } else {
           rtrn = '{' + rtrn.substr(0,rtrn.length-1) + '}';
        }//end if-else addwhitespace
        if(addwhitespace == 'html') {
           rtrn = rtrn.replace(/ /g,"&nbsp;").replace(/\n/g,"<br>");
        }//end if addwhitespace == html
        return rtrn;
     }//end function var_dump

var_dump for javascript

hackish implementation of the php 'var_dump()' in javascript:

function var_dump(obj) {
   if(typeof obj == "object") {
      return "Type: "+typeof(obj)+((obj.constructor) ? "\nConstructor: "+obj.constructor : "")+"\nValue: " + obj;
   } else {
      return "Type: "+typeof(obj)+"\nValue: "+obj;
   }
}//end function var_dump
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