VBScript » Dictionary » Exists
Version: 2.0
- Syntax:
- object.Exists (keyvalue)
- Keyvalue
- The value of the key associated with the item being returned or set.
The Exists method is used to determine whether a key already exists in the specified Dictionary. Returns True if it does and False otherwise.
Examples
Code:
<%
dim guitars
set guitars=CreateObject("Scripting.Dictionary")
guitars.Add "e", "Epiphone"
guitars.Add "f", "Fender"
guitars.Add "g", "Gibson"
guitars.Add "h", "Harmony"
If guitars.Exists("g") Then
guitars.Item("g") = "Guild"
End If
%>Output:
"Epiphone"
"Fender"
"Guild"
"Harmony"
Explanation:
This code uses the Exists method to see if the key with the value of 'g' exists in the Dictionary object and, if it does, changes its corresponding item value.
