Re^5: Global variable vs passing variable from sub to sub

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[dragonchild]

I'm not such a people.

Ok. No-one says you have to do it. We're simply explaining why we choose to 'use strict', initialize every variable, scope things as tight as possible, and all that other crap.

I don't know what would take more time, debugging such bugs or initializing every variable. The former is rare. The latter would have to be done all the time.

Personally, I find it a lot easier to declare every variable immediately, because it helps me keep track of things. That may not be a concern of yours, so my experiences may not have relevance to you. I also prefer to have Perl determine when I typo something vs. running a separate program. Again, different strokes.

I also find it helpful to scope variables as tightly as possible, because it helps me understand the code I just wrote. I choose to keep as few details in my head as possible. This requires me to organize my code in a certain way, so that I can immediately understand the code I wrote in a glance. Again, I am not saying that I have "The Holy Writ"(tm) when it comes to coding styles. I'm only describing those practices that help me, personally, and explaining why I recommend them to people who ask.