Programming ColdFusion

Name

StructKeyExists

Synopsis

StructKeyExists(structure, key)

Checks for the existence of key in the specified structure. Returns True if the key exists or False if it doesn’t. The following example checks for the existence of different keys in a structure called Stock:

<CFSET Stock = StructNew(  )>
<CFSET Stock.Company = "Allaire">
<CFSET Stock.Ticker = "ALLR">
<CFSET Stock.Exchange = "NASDAQ">
<CFSET Stock.Price = "66.25">
<CFSET Stock.Change = "+0.375">
<CFSET Stock.LastTradeTime = "10:17AM">
<CFSET Stock.LastTradeDate = "05/17/1999">
<CFSET Stock.Volume = "8300">

<CFIF StructKeyExists(Stock, "company")>
  The key <B>company</b> exists in the structure called <B>Stock</B>.
<CFELSE>
  The key <B>company</b> doesn't exist in the structure called <B>Stock</B>.
</CFIF>
<P>
<CFIF StructKeyExists(Stock, "address")>
  The key <B>address</b> exists in the structure called <B>Stock</B>.
<CFELSE>
  The key <B>address</b> doesn't exist in the structure called <B>Stock</B>.
</CFIF>