Returns true if a specified key exists in the Dictionary object, false if it does not.
The following example illustrates the use of the Exists method.
| Checking if an item exists (JScript) | Copy Code |
|---|
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);
} |
| Checking if an item exists (Visual Basic) | Copy Code |
|---|
Function KeyExistsDemo
Dim d, msg ' Create some variables.
Set d = CreateObject("Scripting.Dictionary")
d.Add "a", "Athens" ' Add some keys and items.
d.Add "b", "Belgrade"
d.Add "c", "Cairo"
If d.Exists("c") Then
msg = "Specified key exists."
Else
msg = "Specified key doesn't exist."
End If
KeyExistsDemo = msg
End Function |