JScript  

Exists Method

[This is preliminary documentation and subject to change]

Returns true if a specified key exists in the Dictionary object, false if it does not.

object.Exists(key)

Arguments

object

Required. Always the name of a Dictionary object.

key

Required. Key value being searched for in the Dictionary object.

The following example illustrates the use of the Exists method.

function keyExists(k)
{
   var fso, s = "";
   d = new ActiveXObject("Scripting.Dictionary");
   d.Add("a", "Athens");
   d.Add("b", "Belgrade");
   d.Add("c", "Cairo");
   if (d.Exists(k))
      s += "Specified key exists.";
   else 
      s += "Specified key doesn't exist.";
   return(s);
}

See Also

Add Method (Dictionary) | Items Method | Keys Method | Remove Method | RemoveAll MethodApplies To: Dictionary Object