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For 2023 (and 2024 ...) - we are now fully retired from IT training.
We have made many, many friends over 25 years of teaching about Python, Tcl, Perl, PHP, Lua, Java, C and C++ - and MySQL, Linux and Solaris/SunOS too. Our training notes are now very much out of date, but due to upward compatability most of our examples remain operational and even relevant ad you are welcome to make us if them "as seen" and at your own risk.

Lisa and I (Graham) now live in what was our training centre in Melksham - happy to meet with former delegates here - but do check ahead before coming round. We are far from inactive - rather, enjoying the times that we are retired but still healthy enough in mind and body to be active!

I am also active in many other area and still look after a lot of web sites - you can find an index ((here))
Introspecion in Perl 6

Perl 6 provides introspection - that's the ability for its object to be able to report on methods, attributes and inheritances.

And if you run Perl6 without an input file, it goes into a read - interpret - run cycle with each line you type in, rather like Python, Ruby and Tcl do. So we can experiment easily with that introspection.

  WomanWithCat:jan16 grahamellis$ perl6
  > "...".^methods
  (BUILD Int Num chomp chop pred succ simplematch match ords samecase
  samemark samespace word-by-word trim-leading trim-trailing trim
  encode NFC NFD NFKC NFKD wordcase trans indent codes chars uc
  lc tc fc tclc flip ord WHY WHICH Bool Str Stringy DUMP ACCEPTS
  Numeric gist perl comb subst-mutate subst lines split words)
  >


  WomanWithCat:jan16 grahamellis$ perl6
  > my $v = 4;
  4
  > $v.^methods
  (Int Num Rat FatRat abs Bridge chr sqrt base polymod expmod is-prime
  floor ceiling round lsb msb narrow Range sign sin tan cotan acosech
  conj atan2 cosec pred asec acotan cosh acos acosec sech unpolar
  log10 atanh log exp acosh truncate sinh tanh acotanh Real sec
  isNaN succ rand asin cos cis cosech asech roots Complex cotanh
  asinh atan WHICH new perl Bool Str gist ACCEPTS DUMP Numeric)
  >

(written 2016-01-02)

 
Associated topics are indexed as below, or enter http://melksh.am/nnnn for individual articles
P301 - Variables in Perl
  [975] Answering ALL the delegate's Perl questions - (2006-12-09)
  [1581] What is an lvalue? (Perl, C) - (2008-03-18)
  [1946] Variable Types in Perl - (2008-12-15)
  [2241] Perl references - $$var and \$var notations - (2009-06-15)
  [2374] Lead characters on Perl variable names - (2009-08-24)
  [2877] Further more advanced Perl examples - (2010-07-19)
  [2972] Some more advanced Perl examples from a recent course - (2010-09-27)
  [3059] Object Orientation in an hour and other Perl Lectures - (2010-11-18)
  [3430] Sigils - the characters on the start of variable names in Perl, Ruby and Fortran - (2011-09-10)
  [4398] Accessing variables across subroutine boundaries - Perl, Python, Java and Tcl - (2015-01-18)

P600 - Perl 6
  [582] DWIM and AWWO - (2006-01-30)
  [2816] Intelligent Matching in Perl - (2010-06-18)
  [4604] Perl - version 6 - official version launched at Christmas - (2016-01-02)
  [4605] Hello World - in Perl 6 - (2016-01-02)
  [4606] Using Perl 6 to analyse and report on data - (2016-01-02)
  [4607] Classes and object - first steps in Perl 6 - (2016-01-02)
  [4609] Mapping an array / list without a loop - how to do it in Perl 6 - (2016-01-03)
  [4610] Sorting by key or by comparator - Perl 6 - (2016-01-03)
  [4611] Hungarian, Camel, Snake and Kebab - variable naming conventions - (2016-01-03)
  [4620] Perl 6 - a Practical Extraction and Reporting example! - (2016-01-11)


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Introspecion in Perl 6
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This is a page archived from The Horse's Mouth at http://www.wellho.net/horse/ - the diary and writings of Graham Ellis. Every attempt was made to provide current information at the time the page was written, but things do move forward in our business - new software releases, price changes, new techniques. Please check back via our main site for current courses, prices, versions, etc - any mention of a price in "The Horse's Mouth" cannot be taken as an offer to supply at that price.

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