From: Robert Dober <robert.dober@...>
Date: 2006-06-18T08:24:44+09:00
Subject: Re: Newbie question about arrays.

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On 6/18/06, Gautam Dey <gdey@mac.com> wrote:
>
> Hello all,
>
>    So I was going through the Ruby array documentation and came
> across Array. abbrev(pattern =3D nil). However, every time I run the
> example code in irb I get the following:
>
> rb(main):001:0> %w{ car cone }.abbrev
> NoMethodError: undefined method `abbrev' for ["car", "cone"]:Array
>          from (irb):1
> irb(main):002:0>
>
>
> What am I doing wrong? Do I need to include a module? If so, how?


Nothing, the documentation is wrong,  I used  irb to check again

 irb(main):007:0> Array.new.methods.sort
=3D> ["&", "*", "+", "-", "<<", "<=3D>", "=3D=3D", "=3D=3D=3D", "=3D~", "[]=
", "[]=3D",
"__id__", "__send__", "all?", "any?", "assoc", "at", "class", "clear",
"clone", "collect", "collect!", "compact", "compact!", "concat", "delete",
"delete_at", "delete_if", "detect", "display", "dup", "each", "each_index",
"each_with_index", "empty?", "entries", "eql?", "equal?", "extend", "fetch"=
,
"fill", "find", "find_all", "first", "flatten", "flatten!", "freeze",
"frozen?", "grep", "hash", "id", "include?", "index", "indexes", "indices",
"inject", "insert", "inspect", "instance_eval", "instance_of?",
"instance_variable_get", "instance_variable_set", "instance_variables",
"is_a?", "join", "kind_of?", "last", "length", "map", "map!", "max",
"member?", "method", "methods", "min", "nil?", "nitems", "object_id",
"pack", "partition", "pop", "private_methods", "protected_methods",
"public_methods", "push", "rassoc", "reject", "reject!", "replace",
"respond_to?", "reverse", "reverse!", "reverse_each", "rindex", "select",
"send", "shift", "singleton_methods", "size", "slice", "slice!", "sort",
"sort!", "sort_by", "taint", "tainted?", "to_a", "to_ary", "to_s",
"transpose", "type", "uniq", "uniq!", "unshift", "untaint", "values_at",
"zip", "|"]
irb(main):008:0>

and there just is no abbrev method.

However you are right with the module idea, quite impressive for a newbie

 require "abbrev"
=3D> true
irb(main):002:0>  Array.new.methods.sort
=3D> ["&", "*", "+", "-", "<<", "<=3D>", "=3D=3D", "=3D=3D=3D", "=3D~", "[]=
", "[]=3D",
"__id__", "__send__", "abbrev", "all?", "any?", "assoc", "at", "class",
"clear", "clone", "collect", "collect!", "compact", "compact!", "concat",
"delete", "delete_at", "delete_if", "detect", "display", "dup", "each",
"each_index", "each_with_index", "empty?", "entries", "eql?", "equal?",
"extend", "fetch", "fill", "find", "find_all", "first", "flatten",
"flatten!", "freeze", "frozen?", "grep", "hash", "id", "include?", "index",
"indexes", "indices", "inject", "insert", "inspect", "instance_eval",
"instance_of?", "instance_variable_get", "instance_variable_set",
"instance_variables", "is_a?", "join", "kind_of?", "last", "length", "map",
"map!", "max", "member?", "method", "methods", "min", "nil?", "nitems",
"object_id", "pack", "partition", "pop", "private_methods",
"protected_methods", "public_methods", "push", "rassoc", "reject",
"reject!", "replace", "respond_to?", "reverse", "reverse!", "reverse_each",
"rindex", "select", "send", "shift", "singleton_methods", "size", "slice",
"slice!", "sort", "sort!", "sort_by", "taint", "tainted?", "to_a", "to_ary"=
,
"to_s", "transpose", "type", "uniq", "uniq!", "unshift", "untaint",
"values_at", "zip", "|"]
 ["ala", "ada", "b", "broad", "crypt"].abbrev
=3D> {"ala"=3D>"ala", "al"=3D>"ala", "b"=3D>"b", "broa"=3D>"broad", "crypt"=
=3D>"crypt",
"c"=3D>"crypt", "ad"=3D>"ada", "cr"=3D>"crypt", "br"=3D>"broad", "broad"=3D=
>"broad",
"cryp"=3D>"crypt", "ada"=3D>"ada", "bro"=3D>"broad", "cry"=3D>"crypt"}
irb(main):004:0>

And you are set for the Ruby Quiz, good luck ;)

Robert

> Thank you,
> Gautam
>
>
>


--=20
Deux choses sont infinies : l'univers et la b=EAtise humaine ; en ce qui
concerne l'univers, je n'en ai pas acquis la certitude absolue.

- Albert Einstein

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