June 2005
Beginner
480 pages
10h 31m
English
Content preview from SAMS Teach Yourself Perl in 24 Hours THIRD EDITION
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.
Q&A
| Q1: | Is there really any difference between using & and not using & when calling a subroutine? |
| A1: | None that should concern you at this point. A subtle difference does exist between &foo and foo when subroutine prototypes are used or when a subroutine is called without parentheses. These are topics well beyond the scope of this book, but for the curious, they're documented in the perlsub manual page. |
| Q2: | When I use my($var) in a program, Perl responds with a syntax error, next 2 tokens my( message. |
| A2: | You either have mistyped something or have Perl version 4 installed. Type perl -v at a command prompt. If Perl responds with version 4, you should upgrade immediately. |
| Q3: | How do I pass (or return) functions, filehandles, multiple arrays, or hashes ... |
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.