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YOUR PERL LEARNING PATH

A little more Perl.
A little more confidence.

One idea at a time, with examples you can follow and checkpoints to see what’s clicking. New here? Begin with chapter one. Know a little already? Jump right in.

Before you start

Assumes experience with variables, loops, arrays, and key-value data. This focused Perl course introduces sigils and context before regular expressions and deeper text processing.

Review a foundation whenever you need it: Lists, sets, and dictionaries · Decisions and loops

Start chapter one Ready for the final?
13 open chapters. Your progress is saved as you go.

Your chapters

Choose any starting point
  1. 01

    Scalars and explicit comparison

    Intermediate

    Choose numeric or string operations intentionally in a small Perl program.

    Start here, or skip ahead
    Open chapter: Scalars and explicit comparison
  2. 02

    Arrays, hashes, and context

    Intermediate

    Read list and scalar contexts without confusing absence with false values.

    Open whenever you’re ready
    Open chapter: Arrays, hashes, and context
  3. 03

    Iteration and function boundaries

    Intermediate

    Trace loop aliases and pass explicit inputs into a subroutine.

    Open whenever you’re ready
    Open chapter: Iteration and function boundaries
  4. 04

    Context-sensitive interfaces

    Intermediate

    Reason about list, scalar, and void callers.

    Open whenever you’re ready
    Open chapter: Context-sensitive interfaces
  5. 05

    References and nested structures

    Advanced

    Represent nested records while making shared data explicit.

    Open whenever you’re ready
    Open chapter: References and nested structures
  6. 06

    Lexical closures and private state

    Intermediate

    Create independent stateful helpers without package globals.

    Open whenever you’re ready
    Open chapter: Lexical closures and private state
  7. 07

    Anchored parsing and captures

    Advanced

    Validate a complete text shape before using captured fields.

    Open whenever you’re ready
    Open chapter: Anchored parsing and captures
  8. 08

    Global matching and parser progress

    Advanced

    Track repeated matches without confusing extraction and validation.

    Open whenever you’re ready
    Open chapter: Global matching and parser progress
  9. 09

    Filtering, mapping, and numeric order

    Advanced

    Build predictable transformations with the right comparison and without accidental mutation.

    Open whenever you’re ready
    Open chapter: Filtering, mapping, and numeric order
  10. 10

    Lexical filehandles and explicit text decoding

    Intermediate

    Separate file paths, open modes, and encoding policy.

    Open whenever you’re ready
    Open chapter: Lexical filehandles and explicit text decoding
  11. 11

    Packages and explicit public interfaces

    Advanced

    Organize names without confusing packages with lexical scope.

    Open whenever you’re ready
    Open chapter: Packages and explicit public interfaces
  12. 12

    Blessed references and method receivers

    Advanced

    Understand object dispatch without hiding the underlying data.

    Open whenever you’re ready
    Open chapter: Blessed references and method receivers
  13. 13

    Exception capture and honest success signals

    Advanced

    Use block eval without confusing false results and failure.

    Open whenever you’re ready
    Open chapter: Exception capture and honest success signals

PUT IT TOGETHER

Final assessment & certificate

30 multiple-choice questions and 2 written coding problems. Pass the knowledge section at 80% overall and at least 50% in every chapter area, complete and review the written practice, and meet the attempt-integrity checks to unlock your certificate.

The certificate records a CodeQuest foundations assessment. Written work is self-reviewed; identity and independent proficiency are not verified.

Open final assessment

Take an issuer-recorded assessment with a verifiable certificate

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