js removes the spaces before and after strings to implement code collection

//For users to callfunction trim(s){ 
  return trimRight(trimLeft(s)); 
} 
//Remove the blank on the leftfunction trimLeft(s){ 
  if(s == null) { 
    return ""; 
  } 
  var whitespace = new String(" \t\n\r"); 
  var str = new String(s); 
  if (((0)) != -1) { 
    var j=0, i = ; 
    while (j < i && ((j)) != -1){ 
      j++; 
    } 
    str = (j, i); 
  } 
  return str; 
} 

//Remove the blank on the rightfunction trimRight(s){ 
  if(s == null) return ""; 
  var whitespace = new String(" \t\n\r"); 
  var str = new String(s); 
  if (((-1)) != -1){ 
    var i =  - 1; 
    while (i >= 0 && ((i)) != -1){ 
      i--; 
    } 
    str = (0, i+1); 
  } 
  return str; 
}

<SCRIPT LANGUAGE="JavaScript"> 
<!-- 
 = function() 
{ 
return (/(^\s*)|(\s*$)/g, ""); 
} 
 = function() 
{ 
return (/(^\s*)/g, ""); 
} 
 = function() 
{ 
return (/(\s*$)/g, ""); 
} 
//--> 
</SCRIPT>

//Get the left space;function ltrim(s){
  return (/(^\s*)/g, "");
}
//Remove the right space;function rtrim(s){
  return (/(\s*$)/g, "");
}
//Get the left and right spaces;function trim(s){
  return (/(^\s*)|(\s*$)/g, "");
}

function trim(str){  
  return (/^(\s|\u00A0)+/,'').replace(/(\s|\u00A0)+$/,'');  
}

function trim(str){  
  return (/^(\s|\xA0)+|(\s|\xA0)+$/g, '');  
} 

function trim(str){  
  str = (/^(\s|\u00A0)+/,'');  
  for(var i=-1; i>=0; i--){  
    if(/\S/.test((i))){  
      str = (0, i+1);  
      break;  
    }  
  }  
  return str;  
}

//----------------------------------------------------------
// Remove the spaces before and after the string// Return value:// Remove the string after space//----------------------------------------------------------
function trim(param) {
  if ((vRet = param) == '') { return vRet; }
  while (true) {
    if ( (' ') == 0) {
      vRet = (1, parseInt());
    } else if ((parseInt() != 0) && ( (' ') == parseInt() - 1)) {
      vRet = (0, parseInt() - 1);
    } else {
      return vRet;
    }
  }
}