Joseph N. Hall

Indeholder "Preface", "Acknowledgements", "Introduction", "Basics", " Item 1: Know your namespaces", " Item 2: Avoid using a slice when you want an element", " Item 3: Don't assign undef when you want an empty list", " Item 4: String and numeric comparisons are different", " Item 5: Remember that 0 and "" are false", " Item 6: Understand conversions between strings and numbers", "Idiomatic Perl", " Item 7: Use $_ for elegance", " Item 8: Know the other default arguments: @_, @ARGV, STDIN", " Item 9: Know common shorthands and syntax quirks", " Item 10: Avoid excessive punctuation", " Item 11: Consider different ways of reading from a stream", " Item 12: Use foreach, map and grep as appropriate", " Item 13: Don't misquote", " Item 14: Learn the myriad ways of sorting", "Regular Expressions", " Item 15: Know the precedence of regular expression operators", " Item 16: Use regular expression memory", " Item 17: Avoid greed when parsimony is best", " Item 18: Remember that whitespace is not a word boundary", " Item 19: Use split for clarity, unpack for efficiency", " Item 20: Avoid using regular expressions for simple string operations", " Item 21: Make regular expressions readable", " Item 22: Make regular expressions efficient", "Subroutines", " Item 23: Understand the difference between my and local", " Item 24: Avoid using @_ directly - unless you have to", " Item 25: Use wantarray to write subroutines returning lists", " Item 26: Pass references instead of copies", " Item 27: Use hashes to pass named parameters.", " Item 28: Use prototypes to get special argument parsing.", " Item 29: Use subroutines to create other subroutines.", "References", " Item 30: Understand references and reference syntax", " Item 31: Create lists of lists with references", " Item 32: Don't confuse anonymous arrays with list literals", " Item 33: Build C-style structs with anonymous hashes", " Item 34: Be careful with circular data structures", " Item 35: Use map and grep to manipulate complex data structures", "Debugging", " Item 36: Enable static and/or run-time checks", " Item 37: Use debugging and profiling modules", " Item 38: Learn to use a debugging version of Perl", " Item 39: Test things by using the debugger as a Perl shell", " Item 40: Don't debug too much at once", "Using Packages and Modules", " Item 41: Don't reinvent the wheel - use Perl modules", " Item 42: Understand packages and modules", " Item 43: Make sure Perl can find the modules you are using", " Item 44: Use perldoc to extract documentation for installed modules", "Writing Packages and Modules", " Item 45: Use h2xs to generate module boilerplate", " Item 46: Embed your documentation with POD", " Item 47: Use XS for low-level interfaces and/or speed", " Item 48: Submit your useful modules to the CPAN", "Object-Oriented Programming", " Item 49: Consider using Perl's object-oriented programming features", " Item 50: Understand method inheritance in Perl", " Item 51: Inherit data explicitly", " Item 52: Create invisible interfaces with tied variables", "Miscellany", " Item 53: Use pack and unpack for data munging", " Item 54: Know how and when to use eval, require, and do", " Item 55: Know when, and when not, to write networking code", " Item 56: Don't forget the file test operators", " Item 57: Access the symbol table with typeglobs", " Item 58: Use @{[Ó]} or a tied hash to evaluate expressions inside strings", " Item 59: Initialize with BEGIN; finish with END", " Item 60: Some interesting Perl one-liners", "Appendix A: sprintf", "Appendix B: Perl Resources", "Index".

Glimrende bog, men bemærk at der er kommet en nyere version.… (mere)