ASP Exists Method
The ASP Exists Method is used to return a Boolean value that returns true if the specified key exists, otherwise it returns false.
Syntax:
DictionaryObject.Exists(key)
Parameters: This method has a single parameter as mentioned above and discussed below:
- Key: It specifies the name of the key value to be searched in the dictionary.
Example :The below code demonstrates the ASP Dictionary.Exists Method.
ASP
<% dim dict 'Create a new dictionary set dict=Server.CreateObject( "Scripting.Dictionary" ) 'Add values to the dictionary dict.Add "g" , "Beginner" dict.Add "p" , "placements" dict.Add "c" , "competitive" 'Check if the key exists in the dictionary if dict.Exists( "g" )=true then Response.Write( "The 'g' key exists in the dictionary" ) else Response.Write( "The 'g' key does not exist in the dictionary" ) end if Response.Write( "<br>" ) 'Check for another key in the dictionary if dict.Exists( "m" )=true then Response.Write( "The 'm' key exists in the dictionary" ) else Response.Write( "The 'm' key does not exist in the dictionary" ) end if set dict=nothing %> |
Output:
The 'g' key exists in the dictionary The 'm' key does not exist in the dictionary