Microsoft® JScript™ Exists Method | Language Reference Version 2

See Also Applies To

##### Description

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

##### Syntax

> object.Exists(key)

> The Exists method syntax has these parts:

> Part | Description
> 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);
> >     }

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