Can I access a function variable form outside?

2 replies
597 views
Translate

I don't know much about ColdFusion yet. If I declare/cfset a variable inside a function, can I just access that variable directly from anywhere on the .CFM page?

This topic is closed to new replies. Start a new post to keep the conversation going.

EddieLotterCorrect answer

Inspiring

If you set a variable in a function without specifying var then yes, the variable will become globally accessible.

Cheers

Eddie

EddieLotterCorrect answer

Inspiring

If you set a variable in a function without specifying var then yes, the variable will become globally accessible.

Cheers

Eddie

Translate

Carl Von Stetten

Legend

As Eddie said, if you don't specify "var myVariable" (or, alternatively if on CF9+, "local.myVariable"), than the variable is globally accessible. However, this is generally to be avoided as it breaks the principle of encapsulation. Generally, a function shouldn't pollute the environment around it. And not scoping variables to remain local to a function can result in race conditions or unintended behavior.

Translate

Sign up

To post, reply, or follow discussions, please sign in with your Adobe ID.

Sign in to Adobe Community

To post, reply, or follow discussions, please sign in with your Adobe ID.