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IsDefined() vs. structKeyExists()

by Eric Jones

Sean Corfield recently blogged about the choice to use IsDefined vs. structKeyExists when trying to determine if a scoped variable (session, application, request, form url etc), exists or not.

Sean talks about how certain dot noted variables will or won’t be seen with IsDefined, BUT I found the fact that IsDefined looks for ANY possible definition even when the variable you’re searching for has been scoped.

Read his blurb to get the full effect.

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This entry was posted on Thursday, July 29th, 2004 at 10:18 pm, contains 72 words, and is filed under ColdFusion. You can follow any responses to this entry through the RSS 2.0 feed. You can skip to the end and leave a response. Pinging is currently not allowed. The views and opinions in this blog post are those of its author.

This post has 2 responses so far

  1. MarcusJT Says:
    July 30th, 2004 at 5:16 am

    The first paragraph is an incomplete sentence… *what* are you trying to determine?!

     
  2. jonese Says:
    July 30th, 2004 at 9:16 am

    fixed sorry about that, must have gotten lost in my cut / paste.

     

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Your Blogmaster is...

Eric Jones

Eric Jones

Eric is an avid ColdFusion developer and gamer who currently occupies a desk in Atlanta GA where is is a Senior Application Developer and lead developer for a new Open Source CMS. Eric also sits on the Board of Directors for his local CFUG.

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