Consistent conventions will enhance the readability of your code.
- [Voiceover] There are a few things you can do…which will greatly enhance the reliability…and readability of your code.…Consistency is more important in Perl…than in other languages because Perl can be so forgiving…of undisciplined coding practices.…Perl's motto, "There's more than one way to do it"…can be a blessing and a curse.…I strongly suggest that you find one way to do it,…whatever, "it" is and stick to that as much as possible.…If it seems like a good idea…to change it in a particular instance,…take the time to analyze that instance.…
Understand why it may work better another way…and make yourself a fitting and repeatable rule for it.…The semicolon at the end of a block is optional in Perl…even with strict and warnings enabled.…If you choose to omit the semicolon…and you later rearrange the code…or add lines at the end,…it can be easy for that line to end up elsewhere…and the missing semicolon to become a problem.…It's best to just get into the habit…and always include it.…Afterall, it's not like the world is…
Watch to learn the details of the Perl syntax, from variables, conditionals, loops, and data structures to regular expressions, functions, and references. A quick-start guide is included for experienced developers who want to get up and running with Perl 5 fast, and the entire course is recommended for both new and experienced programmers alike. Later chapters cover file handling and reusing code with Perl modules, plus Perl best coding practices.
- Understanding Perl's general syntax and the anatomy of a Perl script
- Writing statements and expressions
- Creating assignments
- Working with variables and strings
- Using data types effectively
- Defining logical flow with conditionals and loops
- Using special variables
- Using Perl operators
- Performing simple Perl programming tasks with expressions
- Matching data
- Defining and calling functions
- Using references
- Handling files in the file I/O
- Using built-in functions
- Reusing code with modules
- Coding with Perl best practices
Skill Level Intermediate
1. Setting Up
About Perl3m 36s
2. Quick Start
3. Basic Syntax
4. Values and Variables
7. Special Variables
9. Regular Expressions
11. References and Structures
12. File I/O
13. Built-In Functions
15. Best Practices
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